This is the accessible text file for GAO report number GAO-07-346 
entitled 'Aviation Security: Efforts to Strengthen International 
Passenger Prescreening are Under Way, but Planning and Implementation 
Issues Remain' which was released on May 16, 2007. 

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Report to Congressional Requesters: 

United States Government Accountability Office: 

GAO: 

May 2007: 

Aviation Security: 

Efforts to Strengthen International Passenger Prescreening are Under 
Way, but Planning and Implementation Issues Remain: 

GAO-07-346: 

GAO Highlights: 

Highlights of GAO-07-346, a report to congressional requesters 

Why GAO Did This Study: 

Passenger prescreening—a process that includes matching passengers’ 
identifying information against records extracted from the U.S. 
government terrorist watch list—is one of several security measures in 
place to help ensure the safety of commercial flights traveling to or 
from the United States. DHS has several efforts underway to strengthen 
international aviation passenger prescreening. This report focuses on 
certain elements of the passenger prescreening process as well as some 
of the actions that DHS is taking or has planned to strengthen 
prescreening procedures. This report is a limited version of the 
original November 2006 report as various agencies that we reviewed 
deemed some of the information in the original report to be security 
sensitive. GAO’s work included interviewing officials and assessing 
relevant documentation from federal agencies, U.S. and foreign air 
carriers, industry groups, and several foreign countries. 

What GAO Found: 

Customs and Border Protection (CBP), the Department of Homeland 
Security (DHS) agency responsible for international passenger 
prescreening, has planned or is taking several actions designed to 
strengthen the aviation passenger prescreening process. One such effort 
involves CBP stationing U.S. personnel overseas to evaluate the 
authenticity of the travel documents of certain high-risk passengers 
prior to boarding U.S.-bound flights. Under this pilot program, called 
the Immigration Advisory Program (IAP), CBP officers personally 
interview some passengers deemed to be high-risk and evaluate the 
authenticity and completeness of these passengers’ travel documents. 
IAP officers also provide technical assistance and training to air 
carrier staff on the identification of improperly documented passengers 
destined for the United States. The IAP has been tested at several 
foreign airports and CBP is negotiating with other countries to expand 
it elsewhere and to make certain IAP sites permanent. Successful 
implementation of the IAP rests, in part, on CBP clearly defining the 
goals and objectives of the program through the development of a 
strategic plan. 

A second aviation passenger prescreening effort designed to strengthen 
the passenger prescreening process is intended to align international 
passenger prescreening with a similar program (currently under 
development) for prescreening passengers on domestic flights. The 
Transportation Security Administration (TSA)—a separate agency within 
DHS—is developing a domestic passenger prescreening program called 
Secure Flight. If CBP’s international prescreening program and TSA’s 
Secure Flight program are not effectively aligned once Secure Flight 
becomes operational, this could result in separate implementation 
requirements for air carriers and increased costs for both air carriers 
and the government. CBP and TSA officials stated that they are taking 
steps to coordinate their prescreening efforts, but they have not yet 
made all key policy decisions. 

In addition to these efforts to strengthen certain international 
aviation passenger prescreening procedures, one other issue requires 
consideration in the context of these efforts. This issue involves DHS 
providing the traveling public with assurances of privacy protection as 
required by federal privacy law. Federal privacy law requires agencies 
to inform the public about how the government uses their personal 
information. Although CBP officials have stated that they have taken 
and are continuing to take steps to comply with these requirements, the 
current prescreening process allows passenger information to be used in 
multiple prescreening procedures and transferred among various CBP 
prescreening systems in ways that are not fully explained in CBP’s 
privacy disclosures. If CBP does not issue all appropriate disclosures, 
the traveling public will not be fully aware of how their personal 
information is being used during the passenger prescreening process. 

What GAO Recommends: 

GAO recommended in November 2006 that the Department of Homeland 
Security (1) complete a strategic plan and develop an evaluation 
strategy for one of its prescreening programs, (2) take steps to ensure 
that international and domestic prescreening programs are aligned, and 
(3) ensure full compliance with applicable privacy laws. DHS generally 
concurred with these recommendations. 

[Hyperlink, http://www.gao.gov/cgi-bin/getrpt?GAO-07-346]. 

To view the full product, including the scope and methodology, click on 
the link above. For more information, contact Cathy Berrick at (202) 
512-3404 or berrickc@gao.gov. 

[End of section] 

Contents: 

Letter: 

Results in Brief: 

Background: 

DHS is Taking Steps to Strengthen the Current International Passenger 
Prescreening Process: 

CBP Has Not Fully Disclosed its Use of Personal Information during the 
Prescreening Process: 

Conclusions: 

Recommendations for Executive Action: 

Agency Comments and Our Evaluation: 

Appendix I: Objectives, Scope, and Methodology: 

Appendix II: Airline Liaison Officer Programs Implemented In Other 
Countries: 

Appendix III: APIS Quick Query (AQQ) and APIS Minus 60 Minutes (APIS-
60): 

Appendix IV: Comments from the Department of Homeland Security: 

Appendix V: GAO Contacts and Staff Acknowledgments: 

GAO Related Products: 

Table: 

Table 1: The Characteristics of Selected ALO Programs: 

Figures: 

Figure 1: Overview of Current Prescreening Activities for International 
Flights: 

Figure 2: Overview of Current Differences between the Domestic and 
International Prescreening Process: 

Figure 3: Immigration Advisory Program Process: 

Figure 4: The interaction between CBP Prescreening Systems and Data 
Usage: 

Abbreviations: 

AEA: Association of European Airlines: 

ALO: Airline Liaison Officer: 

APIS: Advanced Passenger Information System: 

APP: Advanced Passenger Processing: 

AQQ: APIS Quick Query: 

ATA: Air Transport Association of America: 

ATS: Automated Targeting System: 

CBP: Customs and Border Protection: 

CSI: Container Security Initiative: 

DHS:  Department of Homeland Security: 

DIMIA: Department of Immigration and Multicultural and Indigenous 
Affairs: 

ETA: Electronic Travel Authority: 

EU: European Union: 

GPRA: Government Performance and Results Act: 

IAP: Immigration Advisory Program: 

IATA: International Air Transport Association: 

ISI: Immigration Security Initiative: 

MIO: Migration Integrity Officer: 

NPRM: Notice of Proposed Rulemaking: 

NTC: National Targeting Center: 

PNR: Passenger Name Record: 

TDY: Temporary Duty: 

TECS: Treasury Enforcement Communications System: 

TSA: Transportation Security Administration: 

TSC: Terrorist Screening Center: 

TSDB: Terrorist Screening Database: 

TSOC: Transportation Security Operations Center: 

VWP: Visa Waiver Program: 

[End of section] 

United States Government Accountability Office: 

Washington, DC 20548: 

May 16, 2007: 

The Honorable John Conyers, Jr. 
Chairman: 
Committee on the Judiciary: 
House of Representatives: 

The Honorable Bennie G. Thompson: 
Chairman: 
Committee on Homeland Security: 
House of Representatives: 

The Honorable Daniel K. Inouye: 
Chairman: 
The Honorable Ted Stevens: 
Vice- Chairman: 
Committee on Commerce, Science, and Transportation: 
United States Senate: 

The Honorable F. James Sensenbrenner, Jr. 
House of Representatives: 

During 2005, a number of passengers that the U.S. government identified 
as a security risk were identified onboard international flights 
traveling to or from the United States.[Footnote 1] In certain cases, 
the resulting security risk was deemed high enough that the U.S. 
government diverted the flight from its intended destination, resulting 
in delays for passengers, costs to the air carriers, and government 
intervention. 

Preventing such high-risk passengers from boarding international 
flights traveling to or from the United States is the goal of the 
nation's international aviation passenger prescreening 
process.[Footnote 2] These efforts include, among other things: 

* Identity matching: comparing passengers' identifying information, 
such as name and date of birth, against records extracted from the U.S. 
government terrorist watch list containing the names of known or 
suspected terrorists.[Footnote 3] 

* Travel document review: evaluating the authenticity and completeness 
of passengers' passports and other travel documents. 

* Risk targeting: comparing passenger information against a set of 
targeting rules that are indicators of elevated passenger risk in an 
attempt to identify possible high-risk passengers who may not be on the 
terrorist watch list. 

The identity matching component of the international passenger 
prescreening process currently involves separate matching activities 
conducted by air carriers (prior to a flight's departure) and the 
federal government (both before and after a flight's departure). In 
2004, Congress mandated that the Department of Homeland Security (DHS) 
issue a proposed plan for completing the U.S. government's identity 
matching process before the departure of all international flights. 
Customs and Border Protection (CBP), the DHS agency charged with 
responsibility for conducting international aviation passenger 
prescreening, published its proposed plan to strengthen passenger 
prescreening in July 2006 in a notice of proposed rulemaking.[Footnote 
4] Appendix III provides more detail on the notice of proposed 
rulemaking and the two prescreening options that CBP provides to air 
carriers in the proposed rulemaking. 

This report is a limited version of the original report that we 
provided to you on November 20, 2006. The various agencies we reviewed 
deemed some of the information in that report as Sensitive Security 
Information or Law Enforcement Sensitive. Therefore, this report omits 
our findings associated with vulnerabilities we identified in the 
existing passenger prescreening process and measures that could be 
taken to address those vulnerabilities. This report also omits key 
details regarding certain procedures, timeframes and locations 
associated with the passenger prescreening process. The objectives of 
the original report addressed: 

* the main factors affecting the international passenger prescreening 
process, and the potential impact of these factors, and: 

* the status of efforts to address these factors, and the issues, if 
any, that could affect efforts to strengthen the international 
passenger prescreening process. 

This version of the report focuses on certain elements of the current 
international aviation passenger prescreening process as well as some 
of the actions that DHS is taking or has planned to strengthen 
prescreening procedures. More specifically this report's content 
addresses: 

* the implementation of the Immigration Advisory Program (IAP), a CBP 
program that assesses risk levels for certain passengers in limited 
overseas locations; 

* the alignment of international and domestic passenger prescreening 
processes; and: 

* compliance with privacy laws with respect to information collected to 
conduct international passenger prescreening. 

Although the information provided in this version of the report is more 
limited in scope, the overall methodology used for our initial report 
is relevant to this report as well because the information contained in 
this report was derived from the initial sensitive report. To address 
the objectives of our initial report we interviewed officials and 
obtained and analyzed relevant documents from CBP, including the 
National Targeting Center (NTC); the Transportation Security 
Administration (TSA), including the Transportation Security Operations 
Center (TSOC); and the Terrorist Screening Center (TSC). To obtain a 
cross section of both domestic and foreign air carriers' views about 
the international passenger prescreening process, including the impact 
of current U.S. prescreening requirements and the potential impact of 
future requirements, we interviewed officials from 13 air carriers that 
fly passengers to and from the United States.[Footnote 5] We also 
interviewed officials from two domestic air carrier and passenger 
travel associations and three international air carrier associations 
that represent the interests of air carriers and travelers to discuss 
the impact of current and potential future U.S. international 
prescreening requirements on their members. We met with foreign 
government officials in the Netherlands, Poland, the United Kingdom, 
Australia, and New Zealand to discuss the impact of current and 
potential future U.S. international prescreening requirements and 
obtain information about aviation prescreening programs in place in 
these countries. We also met with officials from the European Union to 
discuss the impact of U.S. prescreening requirements on air carriers 
with operations in Europe. Additionally, we interviewed and obtained 
documents from private sector companies that facilitate the electronic 
transmission of passenger data between air carriers and government 
agencies to determine their role, if any, in future international 
aviation passenger prescreening initiatives. We conducted our work, 
which took place from April 2005 through October 2006, in accordance 
with generally accepted government auditing standards. Appendix I 
contains more detail about our scope and methodology. 

Results in Brief: 

DHS has several efforts underway to strengthen international aviation 
passenger prescreening. Two of these efforts include: 

* Conducting overseas review of some high-risk passengers' travel 
documents. One prescreening effort that CBP has under way is designed 
to increase the level of scrutiny given to the travel documents of 
certain high-risk passengers before they board international flights 
traveling to the United States. Under this pilot program, called the 
Immigration Advisory Program (IAP), CBP assigns officers to selected 
foreign airports where they utilize an automated risk-targeting system 
that identifies passengers as potentially high-risk--including 
passengers who do not need a visa to travel to the United States. CBP 
officers then personally interview some of these passengers and 
evaluate the authenticity and completeness of these passengers' travel 
documents. Successful implementation of the IAP rests, in part, on CBP 
clearly defining the goals and objectives of the program. 

* Aligning international and domestic prescreening programs. A second 
prescreening effort under way is designed to align international 
passenger prescreening with a similar program under development for 
prescreening passengers on domestic flights. The Transportation 
Security Administration--a separate agency within DHS--is developing a 
domestic passenger prescreening program called Secure Flight. Once 
Secure Flight is operational, TSA will be operating a domestic 
passenger prescreening system, and CBP will be operating an 
international passenger prescreening system. As currently envisioned, 
both programs will screen passengers whose itinerary includes both an 
international flight and a domestic connection within the United 
States. If the two programs are not effectively aligned, each program 
could result in separate implementation requirements for air carriers. 
This could result in additional costs to the air carriers and the U.S. 
government, and cause confusion and inconvenience to passengers. CBP 
and TSA officials stated that they are taking some steps to coordinate 
their prescreening efforts, but they have not yet made all key policy 
decisions. 

In addition to these efforts to strengthen certain international 
passenger prescreening procedures, one other issue, while not aimed at 
strengthening the capabilities of international aviation passenger 
prescreening, nonetheless requires consideration in the context of 
these efforts. This issue is: 

* Providing assurances of privacy protection as required by federal 
privacy law. Federal privacy law requires agencies to inform the public 
about how the government uses their personal information. Although CBP 
officials have stated that they have taken and are continuing to take 
steps to comply with these requirements, the current prescreening 
process allows passenger information to be used in multiple 
prescreening procedures and transferred among various CBP prescreening 
systems in ways that are not fully explained in CBP's privacy 
disclosures. Although CBP recently published additional privacy 
disclosures related to its use of passenger data during the 
prescreening process, CBP's current public disclosures do not fully 
explain its uses of personal information during the entire prescreening 
process. If CBP does not issue all appropriate disclosures, the 
traveling public will not be fully aware of how their personal 
information is being used during the passenger prescreening process. 

To help DHS ensure progress on efforts to strengthen the international 
passenger prescreening process, we recommended in our November 2006 
report that the Secretary of the Department of Homeland Security and 
the Commissioner of Customs and Border Protection take the following 
steps: (1) complete a strategic plan and develop an evaluation strategy 
for the Immigration Advisory Program pilot, (2) further align domestic 
and international passenger prescreening processes and coordinate 
prescreening efforts, and (3) ensure that international passenger 
prescreening programs are in full compliance with federal privacy laws. 
We provided a draft of this report to DHS and DOJ for their review and 
comment. DHS, in its written comments, generally concurred with the 
recommendations in the report. DHS and DOJ both provided technical 
comments that we incorporated as appropriate. In its written comments, 
DHS outlined the status of various efforts that it has in progress or 
planned to address the recommendations. For example, DHS stated that 
CBP has efforts under way to capture additional data in order to 
properly evaluate the IAP's performance, and that there are ongoing 
efforts by CBP and TSA to align procedures, systems and functional 
requirements for their respective passenger prescreening programs. DHS 
also noted in its comments the recent and planned efforts to publish 
new privacy disclosure documents, such as the November 2006 system of 
records for its automated targeting system, which would supplement its 
other existing public disclosure documents. The full text of DHS's 
comments is provided in appendix IV. 

Background: 

Passenger prescreening is one security measure among many implemented 
both before and after the terrorist attacks of September 11 designed to 
strengthen the security of U.S. commercial aviation. Together, these 
various measures combine to form a multi-layered aviation security 
approach. Although the prescreening of passengers on international 
flights traveling to or from the United States predated the September 
11, 2001 terrorist attacks, this process was strengthened after the 
attacks. 

Current International Passenger Prescreening Process Relies on Two 
Different Sets of Passenger Data and Involves Multiple Steps: 

The current international passenger prescreening process relies on two 
different sets of passenger data and involves multiple prescreening 
steps carried out by air carriers and CBP. The two sets of passenger 
data include: 

Passenger Name Record (PNR) data, such as name, address, and billing 
information that passengers provide to air carriers, travel agents, or 
online travel companies when making a flight reservation. 

Advance Passenger Information System (APIS) data, such as name, date 
and location of birth, and country of citizenship, which is derived 
from passports and other government-issued documents, such as visas, 
that most passengers must present to air carriers when checking in for 
international flights. 

A central prescreening activity involves matching identifying 
information about passengers--including name and date of birth--against 
the No Fly and Selectee Lists that are extracted from the TSC's 
Terrorist Screening Database (TSDB) to identify potential security 
threats in a process often called identity matching. The identity 
matching step is conducted by both air carriers and the U.S. 
government. Federal requirements state that air carriers must transmit 
APIS data to CBP no later than 15 minutes before flight departure for 
international flights originating in the United States and no later 
than 15 minutes after flight departure for international flights bound 
for the United States. In addition to these data, CBP occasionally uses 
commercial data or data from other government databases during this 
process to help confirm a passenger's identity. 

A second prescreening activity, separate from identity matching, 
involves using risk assessment tools to analyze passenger data to 
assess the security risk that a passenger might pose. This constitutes 
an effort to identify high-risk passengers that may not be on the No 
Fly or Selectee Lists. Specifically, CBP uses an automated system, 
called the Automated Targeting System-Passenger (ATS-P), that uses 
available passenger data to apply a set of CBP-generated targeting 
"rules" that CBP has determined are associated with increased passenger 
risk. CBP uses both PNR and APIS data to apply the ATS-P rules. This 
comparison results in a risk assessment for each passenger indicating 
the passenger's relative security risk. 

A third prescreening activity involves the review of passengers' travel 
documents for evidence of forgery or fraudulent use. Depending on the 
passenger, this document review can occur at three separate time frames 
during the process of flying internationally, as follows: (1) the State 
Department reviews the travel documents in advance of travel for 
passengers who are required to obtain a visa in advance of their 
travel, (2) air carrier personnel review passengers' travel documents 
for authenticity upon check-in for flights, and (3) CBP officers review 
passenger travel documents either upon the passengers' arrival in the 
United States or, in some cases, prior to their departure for the 
United States. Figure 1 provides an overview of the current passenger 
prescreening activities as set against the basic steps typically taken 
to fly internationally--including obtaining a flight reservation and 
ticket, checking in for a flight, departing from one country, and 
arriving in another. 

Figure 1: Overview of Current Prescreening Activities for International 
Flights: 

[See PDF for image] 

Source: GAO. 

[A] An additional prescreening step occurs for those passengers 
traveling to the United States from non-visa waiver program countries. 
For these passengers this additional step involves State Department 
officers reviewing the authenticity of their passports prior to issuing 
a travel visa. 

[B] In several overseas locations, CBP also reviews the travel 
documents of selected high-risk passengers through a pilot program. See 
page 14 for more details on the pilot program. 

[End of figure] 

Air Carriers Use Passenger Data Obtained during Reservation Process to 
Conduct a Comparison against the No Fly and Selectee Lists: 

Before a passenger receives a boarding pass, the air carriers conduct 
an initial identity match, which (along with CBP's identity matching 
process) constitutes the first step of the international passenger 
prescreening process. To complete this prescreening step, air carriers 
compare PNR data (information that is self-reported by passengers when 
they make a flight reservation) against the No Fly and Selectee Lists 
to determine if there are any identity matches. This prescreening step 
is required to occur prior to flight departure. The No Fly and Selectee 
Lists are extracted from the TSC's TSDB, the consolidated federal 
government terrorist watch list (which contains the names of known or 
suspected terrorists). Persons on the No Fly List are deemed to be a 
threat to civil aviation and are therefore to be precluded from 
boarding an aircraft traveling to, from, or within the United States. 
Being on the Selectee List does not mean that the person will not be 
allowed to board an aircraft or enter the United States. Instead, 
persons on this list receive additional security screening prior to 
being permitted to board an aircraft--this screening may involve a 
physical inspection of the person and a hand-search of their luggage. 

Examples of PNR data that may be collected at the time a reservation is 
made include a passenger's name, home address, telephone number, 
frequent flyer information, and e-mail address. If an air carrier 
determines that a passenger's identity matches an identity on the No 
Fly List, TSA requires the carrier to contact the TSA Office of 
Intelligence so U.S. authorities can further verify whether the 
passenger's identity matches the watch-listed identity.[Footnote 6] 

CBP Uses Passenger Data Obtained during Passenger Check-in to Conduct 
an Identity-matching Procedure: 

CBP also conducts an identity matching process after air carriers 
conduct their identity matching, but CBP's process utilizes APIS data. 
These data are generally gathered from the passenger's passport--a 
document required of almost all passengers flying into and out of the 
United States.[Footnote 7] In most instances, these data are recorded 
electronically from the traveler's machine-readable passport. This 
process records information from the passport directly into the air 
carrier's computer systems, thereby avoiding potential errors that 
could occur by key-stroking the data. CBP uses the APIS data to conduct 
identity matching using its automated systems including its law 
enforcement databases and the No Fly and Selectee Lists, which CBP 
transfers to its Treasury Enforcement Communications System 
(TECS).[Footnote 8] If this review produces a positive match to the No 
Fly List, the TSA Office of Intelligence is contacted to confirm the 
match. 

CBP Identifies Passengers Not on the No Fly and Selectee Lists Who May 
Present Security Risks: 

While the above prescreening activities focus on determining whether 
any passengers are on the No Fly and Selectee Lists, CBP also conducts 
a second prescreening step to identify other passengers, not on the No 
Fly and Selectee Lists, but who may nonetheless present a potential 
security risk. This step is a risk targeting process that occurs for 
international flights traveling to or from the United States. CBP 
conducts this risk-targeting using a computer-based system called the 
Automated Targeting System-Passenger. This system compares passenger 
data (both PNR and APIS data), along with data from government 
databases (including the TSDB), against a set of targeting rules. 
According to CBP officials, this risk-targeting process reflects CBP's 
experience with indicators of possible illegal or other activities that 
CBP is responsible for monitoring. This comparison results in a risk 
assessment for each passenger that CBP uses to determine if the 
passenger requires additional CBP contact--either before the passenger 
boards a U.S.-bound aircraft or upon the passenger's arrival in the 
United States. If a passenger's risk assessment indicates an elevated 
security risk, CBP may decide to take additional security actions to 
gather more information about the passenger. Additionally, CBP can also 
decide that a passenger's risk level is sufficiently elevated that the 
passenger should be prevented from boarding a flight. If the flight is 
abroad, CBP officials stated that they can coordinate with State 
Department Officers to contact U.S. Embassy Legal Attaché officials 
assigned abroad at foreign embassies and consular offices. These Legal 
Attaché officers coordinate with foreign law enforcement personnel to 
identify, interview, or inspect the passenger before allowing the 
passenger to board the flight. 

Air Carriers and CBP Evaluate the Authenticity of Passenger Travel 
Documents: 

A third prescreening step involves air carriers and CBP determining the 
authenticity of passenger travel documents. Before issuing boarding 
passes on flights departing from or arriving in the United States, air 
carriers are required to review each passenger's travel documents, 
including passports and visas, to verify that the passenger is properly 
documented for the intended destination. For U.S.-bound passengers, air 
carriers are also required to validate that the passenger's passport 
information matches the APIS data that the air carriers electronically 
submit to CBP. CBP provides periodic training to air carrier personnel 
to help them determine the authenticity and completeness of passenger 
travel documents. CBP's review of passenger documentation can occur in 
multiple locations. For example, CBP is always required to inspect 
travel documents for passengers on international flights arriving in 
the United States. However, in some overseas locations, CBP officials 
also review passenger documents prior to the passenger boarding a U.S.- 
bound international flight. 

Federal Law Mandated That CBP Publish a Plan to Alter Its Prescreening 
Process: 

The current prescreening process is under revision and under a proposed 
plan, the U.S. government will take over the process of identity 
matching passengers against the No Fly and Selectee Lists from the air 
carriers prior to flight departures. As part of the Intelligence Reform 
and Terrorism Prevention Act of 2004,[Footnote 9] Congress mandated 
that DHS issue a notice of proposed rulemaking (NPRM) by February 16, 
2005, that would allow CBP to conduct its comparison of passenger 
information against the No Fly and Selectee Lists before the departure 
of all international flights traveling to or from the United States. 
CBP issued its NPRM on July 14, 2006, and provided for a public comment 
period.[Footnote 10] 

Prescreening Passengers on Domestic Flights Involves a Different 
Process: 

Concurrent to the changes that are being considered for conducting 
international passenger prescreening, TSA, the agency charged with 
ensuring the security of all modes of transportation, is in the process 
of modifying domestic passenger prescreening procedures. TSA is 
required, by the Intelligence Reform and Terrorism Prevention Act of 
2004, to develop a prescreening program through which TSA would assume 
the domestic watch list matching function currently conducted by air 
carriers prior to domestic flight departures. TSA has named this 
prospective prescreening program Secure Flight. 

As we have reported in our prior work on Secure Flight, currently only 
air carriers--and not the U.S. government--match passenger information 
against the No Fly and Selectee Lists to prescreen passengers on 
domestic flights. [Footnote 11] We have also reported that TSA has 
faced significant management challenges in the past in developing the 
Secure Flight program, and that key policy decisions that would affect 
the effectiveness of the program had not yet been made. In 2006, TSA 
announced that it was delaying the development of Secure Flight in 
order to reassess the program's goals, requirements, and capabilities. 
The current domestic prescreening process also requires that air 
carriers operate the Computer-Assisted Passenger Prescreening System 
(CAPPS), which identifies passengers for secondary screening based on 
certain travel behaviors reflected in their reservation information 
that are associated with threats to aviation security, as well as 
through a random selection of passengers.[Footnote 12] Figure 2 
highlights the main steps of, and differences between, the prescreening 
of passengers on domestic and international flights. 

Figure 2: Overview of Current Differences between the Domestic and 
International Prescreening Process: 

[See PDF for image] 

Source: GAO, MapArt (map). 

[A] International flights departing from the United States that are 
operated by U.S. air carriers are required to also operate CAPPS to 
identify passengers for secondary screening. This occurs in addition to 
the risk assessments being conducted by CBP. 

[End of figure] 

DHS is Taking Steps to Strengthen the Current International Passenger 
Prescreening Process: 

CBP has several efforts under way to strengthen certain international 
passenger prescreening processes. One such effort involves the 
placement of CBP personnel overseas to interview some high-risk 
passengers and inspect their travel documents in advance of their 
departure to the United States. This program also incorporates a 
mechanism to provide air carrier personnel with additional training on 
identifying fraudulent travel documents. As it revises the 
international passenger prescreening process, CBP is also attempting to 
align its process with the prospective program to prescreen passengers 
on domestic flights, which will be administered by the TSA. 

Immigration Advisory Program Developed to Increase Review of Travel 
Documents for Some High-Risk Passengers at Foreign Airports: 

One program, currently in place but supplemental to the primary 
international passenger prescreening processes, is a program that 
provides additional scrutiny to passengers and their travel documents 
at foreign airports prior to their departure for the United States. 
This program, called the IAP,[Footnote 13] is a pilot program that 
began in 2004 and was designed to identify and target potential high- 
risk passengers. Under the IAP pilot, CBP has assigned trained officers 
to foreign airports where they personally interview pre-identified high-
risk passengers, conduct behavioral assessments, and evaluate the 
authenticity of travel documents prior to the passenger's departure to 
the United States. The pilot program has been tested in several foreign 
airports, and CBP is negotiating with other countries to expand it 
elsewhere and to make certain IAP sites permanent. 

The IAP pilot serves both national security and immigration functions. 
According to CBP, the purpose of the IAP is to (1) prevent passengers 
identified as security threats from boarding international flights 
bound for the United States, (2) provide no board recommendations to 
the air carriers for passengers who are not properly documented for 
entry into the United States, (3) provide training to air carrier 
personnel on how to detect fraudulent travel documents, (4) provide 
advance notice to U.S. authorities of passengers that warrant closer 
inspection upon their arrival in the United States, (5) collect law 
enforcement information on known or suspected criminal aliens and 
smugglers, and (6) share information with foreign government and law 
enforcement officials regarding trends in illegal travel. CBP officials 
and others have also stated that a secondary benefit of the IAP pilot 
is to help facilitate the legitimate travel of passengers, particularly 
U.S. citizens. Figure 3 depicts how the IAP works at international 
airports. 

Figure 3: Immigration Advisory Program Process: 

[See PDF for image] 

Source: GAO. 

[End of figure] 

Perceived Successes of IAP Led CBP to Expand the Program: 

The IAP pilot began at several sites in 2004. Each site consists of a 
group of IAP officers and a team leader. Team leaders are typically 
assigned to longer posts as compared to other IAP officers. Expansion 
of the pilot program to other locations has already begun. The 
Intelligence Reform and Terrorism Prevention Act of 2004 requires that 
CBP identify 50 foreign airports for further expansion of the IAP, and 
CBP has subsequently completed this list.[Footnote 14] 

CBP has reported several successes through the IAP pilot. According to 
CBP documents, from the start of the IAP pilot in June 2004 through 
February 2006, IAP teams made more than 700 no-board recommendations 
for inadmissible passengers and intercepted approximately 70 fraudulent 
travel documents. CBP estimated that these accomplishments equate to 
about $1.1 million in cost avoidance for the U.S. government associated 
with detaining and removing passengers who would have been turned away 
after their flights landed, and $1.5 million in air carrier savings in 
avoided fines and passenger return costs.[Footnote 15] According to 
CBP, these monetary savings have defrayed the costs of implementing the 
program. However, it is not yet clear whether CBP anticipates, or 
expects, that the IAP will pay for itself through its government and 
air carrier cost savings, as it previously asserted.[Footnote 16] 

CBP officials said that they have also expanded a related program for 
training air carrier staff to better identify fraudulent identity 
documents and placed this program within IAP. This program, known as 
the Carrier Liaison Program, officially began in February 2006. 
According to CBP officials, CLP's purpose is to enhance border security 
by providing technical assistance and training to air carrier staff on 
the identification of improperly documented passengers destined for the 
United States. 

To continue to strengthen and successfully expand the IAP, CBP is faced 
with concerns expressed by host government and IAP officials about the 
duration of its IAP officer rotations. CBP officials said that they 
were aware of these concerns and are taking steps to address the 
matter. 

CBP's IAP Is Similar to Programs in Other Countries: 

Several other countries, such as the United Kingdom, Canada, Australia, 
and New Zealand, also operate programs similar to IAP. Known as airline 
liaison officer (ALO) programs, these programs have in some cases been 
operating since the late 1980s. Like IAP, these countries also 
generally post officers overseas at airports in an attempt to intercept 
improperly documented passengers from traveling to their country. CBP 
officials are aware of these programs but believe that the IAP is 
different in some key respects. Most notably, CBP officials stated that 
IAP's focus is on terrorism, while ALO programs focus primarily on 
illegal immigration. However, valuable lessons can be gained from the 
experiences of these other countries in implementing similar programs 
as CBP continues to develop its IAP pilot. For example, officials from 
one ALO program stated that their country incorporated a Web-based 
system that allows its ALO officers to record improperly documented and 
other suspect travelers. These data can then be instantly accessed and 
analyzed at headquarters so that the information can be used to make 
changes to improve all of the country's ALO locations. Another ALO 
program utilizes PNR data to identify trends in document fraud, 
allowing its ALO network to quickly transmit alert information into its 
passenger screening system so that identified passengers can be 
screened further at check in prior to boarding an aircraft. CBP, 
however, relies upon each IAP site to send aggregate reporting 
statistics to CBP headquarters--potentially limiting the program's 
ability to rapidly analyze and act on trends in document fraud since 
there is a time delay in CBP headquarters receiving the data. 
Additionally, a United Kingdom official stated that their ALO program 
benefited from expanding the program slowly during the initial stages 
of the program to allow the United Kingdom government to learn 
important lessons from its early ALO sites. Appendix II contains a 
summary of information and potential lessons to be learned from the ALO 
programs of other countries. 

CBP Could More Fully Incorporate Risk Management Principles in the IAP 
Pilot: 

CBP has not taken all of the steps necessary to fully learn from its 
pilot sites in order to determine whether the program should be made 
permanent and the number of sites that should exist. These steps are 
part of a risk management approach to developing and evaluating 
homeland security programs. Risk management is a continuous process of 
assessing risks, determining the best available actions to mitigate 
these risks, implementing actions to reduce risks, and evaluating these 
actions to determine their level of benefit. Managing homeland security 
efforts on the basis of risk has received widespread support from 
Congress, the President, and others as a way to help set priorities 
effectively and to allocate limited resources. A risk management 
framework includes such elements as formally outlining the goals of the 
program, setting measurable performance measures, and evaluating 
program effectiveness.[Footnote 17] 

Although CBP is currently taking steps to make its IAP sites permanent 
and to expand the program to other foreign locations, CBP has not 
finalized a strategic plan for the program that delineates program 
goals, objectives, constraints, and evaluative criteria. We have 
reported in the past that high-performing organizations have a focus on 
achieving results and outcomes and foster a results-oriented 
organizational culture to reinforce this focus. Key to developing this 
focus is strategic planning, which involves having a mission that 
employees, clients, customers, partners, and other stakeholders 
understand and find compelling; setting goals to achieve the mission; 
and aligning the organization's activities, core processes, and 
resources with those goals.[Footnote 18] CBP officials told us that 
they have drafted a strategic plan for the IAP, which contains program 
goals and performance measures, but CBP stated that the plan has not 
yet been finalized. 

DHS Intends to Align International and Domestic Prescreening Programs, 
but DHS Has Not Yet Made All Key Policy Decisions: 

A second effort that CBP has under way to strengthen the international 
passenger prescreening process involves the alignment of the U.S. 
government's international and domestic aviation prescreening programs, 
which are being developed separately by CBP and TSA, respectively. 
Aligning these two programs is particularly important because many 
passengers in the United States who are traveling to or from foreign 
destinations have a domestic flight in addition to their international 
flight. Passengers traveling on these types of flights are currently 
subjected to two different prescreening processes. 

The air carrier community has asked CBP and TSA to coordinate their 
efforts to ensure that the programs are compatible and are developed as 
a single approach to avoid the need for air carriers to implement two 
separate screening systems to meet CBP and TSA requirements. Without 
such coordination, air carriers might have to implement different 
information connections, communications, and programming for each 
prescreening program, as well as ensure that their data are compatible 
with each program. In a joint letter to the Secretary of DHS, the Air 
Transport Association of America (ATA) and the Association of European 
Airlines (AEA) urged DHS to coordinate international and domestic 
aviation passenger prescreening programs so that air carriers are not 
unduly burdened by the costs and inefficiencies posed by working with 
two different prescreening programs. The letter also stated that ATA 
and AEA believed that there had been a lack of full coordination 
between CBP and TSA in aligning their respective passenger prescreening 
programs. Further, as we have previously reported, since both agencies 
are developing and implementing passenger prescreening programs, CBP 
and TSA could mutually benefit from the sharing of technical testing 
results and the coordination of other developmental efforts.[Footnote 
19] Coordination and planning in the development of these two programs 
would also enhance program integration and interoperability and 
potentially limit redundancies. 

In 2004, CBP and TSA officials stated that they recognized the 
similarities between the international passenger prescreening and the 
proposed domestic prescreening programs, and acknowledged the need to 
coordinate the two programs. According to CBP officials, DHS has 
expressed its intention to align international and domestic passenger 
prescreening efforts, and decided to develop one "portal" through which 
carriers will transmit passenger data to the government for domestic 
and international flights. CBP officials further stated that 
interagency discussions with TSA have resulted in a decision to create 
a single communication point for the submission of the passenger data 
for both domestic and international flights, one of the main concerns 
of air carriers. 

Despite these coordination efforts and DHS's commitment to align the 
processes, CBP and TSA have not yet made all of the policy decisions to 
complete the alignment between the CBP international prescreening 
program and the prospective Secure Flight program, including the use of 
different data elements, documentation, and identity matching 
technologies to conduct prescreening.[Footnote 20] CBP officials stated 
that many of these policy and technical decisions have not been made 
because TSA is in a process of "rebaselining" its Secure Flight 
program, which involves TSA reassessing program goals, requirements, 
and capabilities. In discussions with us, CBP and TSA officials stated 
that these coordination efforts were continuing, but they did not 
provide any documentation of how such matters were being resolved or 
when they planned for the programs to be aligned. 

CBP Has Not Fully Disclosed its Use of Personal Information during the 
Prescreening Process: 

One additional issue requires consideration, as well, in the context of 
DHS's efforts to strengthen the passenger prescreening process. Despite 
recent efforts by CBP to provide more detailed information to the 
public about its use of passenger data during the international 
passenger prescreening process, CBP has not fully disclosed or assessed 
the privacy impacts of its use of personal information during 
international passenger prescreening as required by law. The Privacy 
Act of 1974 and the E-Government Act of 2002 require federal agencies 
to protect personal privacy by, among other things, limiting the 
disclosure of personal information and informing the public about how 
personal data are being used and protected. Federal agencies inform the 
public of their use of personal information by issuing two types of 
documents: 

System of records notices: The Privacy Act requires that agencies 
publish a notification in the Federal Register that informs the public 
when they establish or make changes to a system of records. 

Privacy impact assessment: The E-Government Act requires that agencies 
analyze how information is handled to (1) ensure handling conforms to 
applicable legal, regulatory, and policy requirements regarding 
privacy; (2) determine the risks and effects of collecting, 
maintaining, and disseminating information in identifiable form in an 
electronic information system; and (3) examine and evaluate protections 
and alternative processes for handling information to mitigate 
potential privacy risks.[Footnote 21] 

Although CBP has taken certain actions to meet the requirements of the 
Privacy and E-Government Acts, including the recent publication of 
additional privacy disclosures, these actions have not fully informed 
the public about how personal information is being used, as required by 
law. Specifically, CBP has published public notices and reports that 
describe certain elements of its international prescreening process, 
but these documents do not fully or accurately describe CBP's use of 
personal data throughout the passenger prescreening process. It is 
important for CBP's documentation to describe all of the steps of the 
prescreening process because the interrelationship of various steps of 
the process allows data to be transferred and used in ways that have 
not been fully disclosed. 

CBP's international prescreening process involves a wide range of 
procedures and data sources that CBP utilizes to determine passenger 
risk levels. According to a CBP official, to help make these 
prescreening decisions, CBP collects personal data from multiple 
sources (including passengers and government databases), and uses the 
data for several purposes, including identity matching against the 
government watch list, risk targeting, and passenger document 
validation. According to CBP, its officers also use commercial data, to 
a limited degree, to assist them in confirming a passenger's identity 
when needed. CBP's public disclosures about APIS and ATS do not 
describe all of the data inputs or the extent to which the data are 
combined and used in making prescreening decisions.[Footnote 22] As 
shown in Figure 4, CBP's passenger prescreening involves more data 
inputs and uses of data than are described in CBP's current privacy 
disclosures. 

Figure 4: The interaction between CBP Prescreening Systems and Data 
Usage: 

[See PDF for image] 

Source: GAO. 

[A] CBP officers can utilize TECS and ATS-P databases to enter 
"lookout" alert flags. Not all CBP officers have access to all of the 
databases listed. 

[B] In the APIS privacy impact assessment, CBP defined APIS as a 
system. However, CBP officials later stated that APIS is not a system 
but rather data that are sent to the TECS to conduct identity matching. 

[C] CBP officials stated that commercial data are only used in rare 
situations when a passenger's identity cannot be verified against other 
information. 

[D] CBP officers use data from the TSC as needed to help confirm a 
passenger's identity. 

[End of figure] 

CBP has stated that its public reporting on its use of APIS data 
complies with the Privacy Act through references to previously 
published Privacy Act notices about systems used during the 
prescreening process. However, these references are not sufficient 
because they do not fully disclose CBP's use of personal information 
during the prescreening process. Specifically, CBP stated that because 
APIS is a system within the Treasury Enforcement Communications System, 
it is described in the TECS system of records notice, which was 
published in October 2001. CBP also referenced a 2003 system of records 
notice for the DHS Arrival and Departure Information System (ADIS), 
which interfaces with TECS, but which CBP officials stated separately 
is not used by CBP in the passenger prescreening process. However, 
neither of these notices specifically describes CBP's passenger 
prescreening or the use of APIS or PNR data. 

Although CBP has stated that its previous privacy disclosures 
sufficiently complied with federal privacy law, on November 2, 2006, 
DHS published a Privacy Act system of records notice for ATS. In 
addition, on November 22, 2006, DHS published a privacy impact 
assessment for ATS. Both of these documents refer to the ATS-P system 
used in CBP's aviation passenger prescreening process. These 
disclosures --released after CBP received an earlier version of this 
report--provide much more detailed information on ATS-P as compared 
with prior privacy disclosures. Nevertheless, CBP has still not 
published a system of records notice or a privacy impact assessment 
that comprehensively describes the entire prescreening process. For 
example, although CBP has published a privacy impact assessment for 
APIS and ATS, neither disclosure describes the combined use of APIS and 
PNR data in passenger prescreening decision-making. The disclosures 
also do not describe that during the prescreening process CBP officers 
are able to access personal data obtained from commercial providers. 

Because CBP's development and operation of its international passenger 
prescreening process has not been accompanied by the publication of 
Privacy Act notices or E-Government Act privacy impact assessments that 
fully describe the use of personal data and the steps taken to protect 
privacy, the public may not be aware of the different ways that their 
information is being used or protected, as required by law. Although 
maintaining that their prior privacy disclosures were fully compliant 
with federal privacy law, CBP stated in May 2006, and DHS reiterated in 
its official comments to this report in January 2007, that CBP plans to 
revise the APIS privacy impact assessment and issue a system of records 
notice for APIS. However, no deadline has been given for when these 
steps will be completed. As CBP moves forward with future modifications 
to its prescreening process, it will be important for CBP to fully 
assess and disclose data privacy protections used in these prescreening 
programs as well. 

Conclusions: 

Since the terrorist hijackings of aircraft on September 11, the United 
States and the rest of the world have uncovered new attempts to 
threaten the security of the commercial aviation system. These threats 
underscore the importance of continually reassessing the numerous 
security measures put into place to secure commercial aviation. One key 
security measure is the prescreening of passengers on international 
flights--an important step to ensure that high-risk passengers do not 
board international flights traveling to or from the United States. 
Another important effort involves ensuring that international and 
domestic prescreening programs are fully aligned to maximize their 
effectiveness and cost efficiency for the government, airline industry 
and passengers. In conjunction with conducting these important 
prescreening activities, DHS must also be vigilant about ensuring that 
it is in full compliance with public privacy requirements. 

CBP is currently taking various and important steps to strengthen the 
international aviation passenger prescreening process. CBP's recent 
publication of a proposed rule for changing the procedures and timing 
for conducting passenger identity matching is an important step. 
Another important effort to strengthen the international aviation 
passenger prescreening process is aligning the process with TSA's new 
domestic prescreening program. Efforts to significantly expand the IAP 
may also strengthen the prescreening process, although CBP will need to 
ensure that sufficient data are collected to allow for appropriate risk 
assessments and evaluations. 

While CBP recognizes and is taking steps to address many of the 
challenges it faces in implementing its various planned prescreening 
programs, there are three areas, in particular, that require further 
planning and monitoring. These areas include: 

* More fully incorporating risk management principles in the IAP pilot. 
CBP is not benefiting from all of the information that could be learned 
from the pilot program and remains at risk of expanding the program or 
making IAP sites permanent without establishing a clear vision of what 
the program is intended to accomplish and how its success will be 
evaluated and measured. Without completing a strategic plan for the 
IAP, the program may not realize its full potential security benefits 
and could require substantial revisions after implementation. 

* Aligning international and domestic passenger prescreening programs. 
If these two prescreening efforts are not effectively coordinated with 
each other, air carriers and other stakeholders could be unnecessarily 
inconvenienced and experience potentially avoidable costs. The U.S. 
government could incur avoidable costs as well, if the programs are not 
properly coordinated and aligned. So far, CBP and TSA have taken some 
steps to coordinate their efforts--for example, they have announced 
their intention to develop a single portal for prescreening passengers 
on domestic and international flights. However, CBP and TSA have not 
yet made all of the key decisions necessary to align the two processes 
nor have they completed a timetable for completing this process. 

* Attaining full compliance with privacy laws. It is important that CBP 
completes reports that fully describe the agency's use and protection 
of personal data during the international passenger prescreening 
process to ensure that it is complying with all applicable privacy 
laws. CBP's current disclosures do not fully inform the public about 
all of its systems for prescreening aviation passenger information nor 
do they explain how CBP combines data in the prescreening process, as 
required by law. As a result, passengers are not assured that their 
privacy is protected during the international passenger prescreening 
process. 

Recommendations for Executive Action: 

To strengthen CBP's international aviation passenger prescreening 
process, in our November 2006 report we recommended that the Secretary 
of the Department of Homeland Security take or direct the Commissioner 
of Customs and Border Protection to take the following three actions: 

* To more fully incorporate risk management principles into the 
planning, implementation, and evaluation of the IAP pilot, CBP should 
(1) prepare a strategic plan that identifies the risks, goals, 
objectives, and performance measures for the IAP pilot, and (2) conduct 
program evaluations that measure the performance of the pilot IAP sites 
against predetermined goals and performance measures. 

* To more fully align CBP's international aviation passenger 
prescreening program with TSA's prospective domestic aviation passenger 
prescreening program, take additional steps necessary to identify the 
remaining impediments to alignment, make the key policy and technical 
decisions needed to more fully coordinate these programs (including a 
determination of the data and identity matching technologies that will 
be used), and set time frames for when these efforts will be completed. 

* To fully inform the public of possible uses of their personal 
information, ensure that all required public data privacy disclosures, 
including system of record notices and privacy impact assessments, are 
completed to adequately cover each element of the international 
passenger prescreening process. The privacy disclosures should fully 
describe the use and handling of personal information within the 
prescreening process and all of CBP's systems for conducting 
international passenger prescreening. 

Agency Comments and Our Evaluation: 

We provided a draft of the security sensitive version of this report, 
and related updates, to DHS and DOJ. On January 31, 2007, we received 
written comments from DHS which are reproduced in full in Appendix IV. 
DHS generally concurred with the three report recommendations and 
provided technical comments, which we incorporated where appropriate. 
DOJ also provided technical comments, which we incorporated where 
appropriate. 

Regarding the actions DHS reported taking to address the 
recommendations, DHS stated that it has completed an IAP Strategic Plan 
and that the plan has been sent for Departmental review. DHS provided a 
copy of the draft IAP Strategic Plan to GAO. While DHS stated that the 
draft strategic plan outlines the measures that CBP intends to use to 
assess the IAP's performance, it is not yet clear from the draft 
strategic plan how challenges as well as successes of the program will 
be measured at each IAP site. This appears to be the case since all of 
the performance measures outlined in the draft strategic plan are 
likely to improve following the deployment of IAP officers, without 
addressing program impediments. DHS also noted that CBP is developing 
system enhancements that will permit simple input, extraction, and 
analysis of empirical data necessary for baseline and current data. We 
are encouraged by these efforts and believe that they will help CBP to 
better evaluate the effectiveness of this pilot program. Moreover, 
given CBP's intention to transition this pilot program into a permanent 
one and expand the program to additional locations, it is important 
that IAP officers and those managing the IAP have the sufficient data 
necessary to make sound decisions. 

Regarding the recommendation that steps be taken to more fully align 
CBP's international passenger prescreening program with TSA's domestic 
passenger prescreening program, DHS stated that its Screening 
Coordination Office has directed CBP and TSA to align these programs. 
DHS further stated that CBP has been working with TSA to align 
procedures and systems and functional requirements, and that both CBP 
and TSA will work with the Centers for Disease Control and Prevention 
to harmonize data requirements and present a single face to the travel 
industry. DHS also noted that CBP recognizes that air carriers have 
invested significant resources to reprogram systems to comply with 
CBP's regulations, and that CBP will continue to work to allow for the 
submission of various passenger data through one transmission process. 
Given the potential costs to air carriers and the government of having 
prescreening procedures and requirements that are not aligned, we 
encourage DHS to complete these efforts and make associated policy 
decisions in a timely manner. 

Regarding the recommendation that the public be fully informed of the 
possible uses of its personal information and that all required public 
data privacy disclosures are completed to adequately address each 
element of the international passenger prescreening process, DHS 
responded with several statements. CBP stated in its comments on the 
draft report that it is and has been in compliance with both the 
Privacy Act regarding System of Records Notices (SORNs) and section 208 
of the E-Government Act of 2002 regarding Privacy Impact Assessments 
(PIAs). CBP bases its compliance with the Privacy Act on the 2001 
publication of a SORN for the Treasury Enforcement Communications 
System (TECS). To the extent that all uses of personal information in 
CBP international passenger prescreening can be associated with the 
statements made in that notice, we would agree that CBP is in 
compliance with the law. That notice, however, states that TECS 
contains "[e]very possible type of information from a variety of 
Federal, state, and local sources, which contribute to effective law 
enforcement." This statement does not identify the categories of 
records maintained in the system, as required by the Act, let alone 
APIS and ATS, which CBP now describes as separate systems. It also does 
not disclose that the system includes personal information collected 
directly from individuals (i.e., passport data) and indirectly through 
air carriers (i.e., PNR data). The TECS SORN does not "facilitate the 
exercise of the rights of individuals" under the Act, as required by 
OMB's Privacy Act guidance.[Footnote 23] While OMB guidance states that 
agencies are granted considerable discretion in preparing SORNS, the 
guidance stresses the importance of appropriately identifying the 
purpose(s) of a system and ensuring that any associated notices have 
"information value to the public." According to OMB, a major purpose of 
the Act is "the publicizing of what those systems are and how they are 
used." The TECS SORN has virtually no information value to the public 
and cannot be said to meet the requirements of the Act. 

CBP also stated in its comments that no PIA is required for its 
prescreening process because the March 2005 APIS PIA addressed changes 
to APIS, and there have been no changes to ATS since the E-Government 
Act went into effect.[Footnote 24] This is incorrect for at least two 
reasons. First, CBP's handling of personal information was 
significantly altered on the basis of its July 2004 agreement with the 
EU regarding handling PNR data from flights between the US and EU 
member countries.[Footnote 25] The DHS Privacy Office's September 2005 
report on the handling of EU PNR describes a number of changes made to 
CBP systems and processes to better safeguard such data. These changes 
are not addressed in any new or revised PIA or SORN. Second, the 
privacy documents that CBP has published do not fully describe the use 
of personal information in the CBP international passenger prescreening 
process, even accepting CBP's statutory authority to limit public 
disclosures under certain circumstances.[Footnote 26] Contrary to CBP's 
characterization of CBP officers as merely conducting an "act of 
physical inspection," the CBP international passenger prescreening 
process involves decisions made by CBP officers on the basis of 
information obtained from multiple sources. As described in our report, 
CBP officers can retrieve identity matching information conducted with 
APIS data, identity matching and risk targeting information performed 
by ATS with PNR and APIS data, as well as information from other 
government databases. They can also access commercial data sources, 
although reportedly on a limited basis for confirming passenger 
identities. Finally, they can also enter information about individuals 
back into a number of government systems.[Footnote 27] These multiple 
uses of information are not described in any CBP privacy documents. 
Despite CBP's statement to the contrary, there are no legal limitations 
to the Privacy Act or the E-Government Act that constrain the agency's 
ability to provide the public with meaningful notice on the use and 
protection of personal information.[Footnote 28] Furthermore, given 
that the handling of personal information in the CBP prescreening 
process has been significantly changed multiple times in the last 
several years, including changes to address the EU PNR agreement and 
changes to the collection of passenger manifest information via APIS, 
the separate publication of APIS and ATS privacy documents satisfy the 
requirements of neither the Privacy Act nor the E-Government Act. 

Upon its issuance, we will provide copies of this report to the 
Secretary of the Department of Homeland Security, the Commissioner of 
Customs and Border Protection, the Administrator of the Transportation 
Security Administration, and interested congressional committees. 

If you have any questions about this report, please contact me at 
BerrickC@gao.gov or (202) 512-3404. Key contributors to this report are 
listed in appendix V. 

Signed by: 

Cathleen A. Berrick: 
Director, Homeland Security and Justice Issues: 

[End of section] 

Appendix I: Objectives, Scope, and Methodology: 

The information contained in this public report is narrower in scope 
and detail than the original report and examines only limited aspects 
of international passenger prescreening procedures. It focuses on only 
certain elements of the current international aviation passenger 
prescreening process as well as only some of the actions that DHS is 
taking or has planned to strengthen prescreening procedures. More 
specifically the report's content is limited to certain issues related 
to: 

* the implementation of the Immigration Advisory Program (IAP), a CBP 
program that assesses risk levels for certain passengers in overseas 
locations; 

* aligning international and domestic passenger prescreening programs; 

* ensuring that compliance with privacy laws is fully achieved with 
respect to information collected to conduct international passenger 
prescreening. 

Although the information provided in this report is more limited in 
scope, the overall methodology used for our initial report is relevant 
to this report as well because the information contained in this report 
was derived from the initial sensitive report. We addressed the 
following objectives in our initial November 2006 report: 

* the main factors affecting the international passenger prescreening 
process, and the potential impact of these factors, and: 

* the status of efforts to address these factors, and the issues, if 
any, that could affect efforts to strengthen the international 
prescreening process. 

To address our first objective from the November 2006 report--the 
factors that affect the international passenger prescreening process 
and their potential impacts--we interviewed officials from Customs and 
Border Protection (CBP), including staff at CBP's National Targeting 
Center (NTC); the Terrorist Screening Center (TSC); and the 
Transportation Security Administration (TSA) to understand the current 
international passenger prescreening process and the data that are used 
during this process. We obtained and analyzed relevant documents from 
these agencies including statistics from the Immigration Advisory 
Program pilot, documentation on CBP's use of data systems to conduct 
international passenger prescreening, and a CBP summary memorandum 
documenting the agency's decision not to pursue the Advanced Passenger 
Prescreening (APP) system that currently operates in other countries 
such as Australia and New Zealand. To obtain a cross section of air 
carriers' views about the process, we selected air carriers that fly 
large, medium, and small numbers of passengers annually into the United 
States. For the purposes of this review, we defined the transport of a 
large number of passengers as more than 1 million passengers annually, 
we defined a medium number as between 500,000 and 1 million passengers 
annually, and a small number as less than 500,000 passengers annually. 
These criteria generally reflect the distribution of the incoming 
passenger volume being flown into the United States between 2000 and 
2004 as shown in Department of Transportation statistical reports. 
Using these criteria, we interviewed officials from seven large air 
carriers, four medium air carriers, and two small air carriers, both 
domestic and foreign, that conduct international flights into and out 
of the United States to discuss the impact of current U.S. 
international passenger prescreening requirements on their operations. 
We also spoke with officials from two domestic air carrier and 
passenger travel associations and three international air carrier 
associations to discuss the impact on their members of current 
international passenger prescreening requirements. We also reviewed 
documents from an international aviation association that evaluated the 
potential impact on its membership of CBP's proposed passenger 
prescreening reforms. To determine the number of No Fly and improperly 
prescreened Selectee passengers who traveled on flights to or from the 
United States during 2005, we obtained and analyzed TSA security 
incident reports from January 1, 2005 to December 31, 2005.[Footnote 
29] 

To address our second objective from the November 2006 report--the 
status of CBP's efforts to address these factors and the issues, if 
any, that could affect efforts to strengthen the prescreening process-
-we interviewed officials from CBP and reviewed relevant documents. We 
also interviewed officials from the seven large air carriers, three 
medium air carriers, and two small air carriers, both domestic and 
foreign, that conduct international flights into and out of the United 
States to obtain their views on the potential impact of future U.S. 
international prescreening requirements. We also spoke with officials 
from two domestic air carrier and passenger travel associations, three 
international air carrier associations, and a travel association that 
represent the interests of air carriers and travelers to obtain their 
views on the potential impact of future U.S. international prescreening 
requirements including APIS-60 and AQQ. We visited two Immigration 
Advisory Program (IAP) pilot sites and met with the IAP teams to 
discuss the current status of the program and observe the prescreening 
process at their respective locations. We discussed potential benefits 
and challenges of the program with the IAP teams. We also reviewed and 
assessed CBP's evaluations of IAP pilot sites. Furthermore, we met with 
government officials from the United Kingdom and Canada to learn 
details about their respective airline liaison officer (ALO) programs 
and to obtain their views on how the IAP pilot compares with their ALO 
programs. One foreign government provided documents that summarize the 
functions of its ALO program. We also met with foreign government 
officials in the Netherlands, Poland, the United Kingdom, Australia, 
and New Zealand to discuss U.S. efforts to strengthen international 
passenger prescreening and the potential impact of these programs. 
Officials from Australia and New Zealand also provided documents 
related to their respective APP prescreening systems. We met with 
officials from the European Union to discuss the impact of U.S. 
international prescreening requirements (including the advanced 
transmission of passenger name record data) on air carriers originating 
from Europe. Additionally, we interviewed and obtained documents from 
private companies that facilitate the electronic transmission of 
passenger data between air carriers and government agencies, including 
CBP, to determine their role, if any, in future international aviation 
passenger prescreening initiatives. To assess CBP's July 2006 Notice of 
Proposed Rulemaking (NPRM), we obtained and analyzed documents 
associated with the NPRM, including CBP's regulatory assessment for the 
rulemaking. To assess whether CBP disclosed, as required by law, its 
use of passenger information during the prescreening process, we 
reviewed CBP's published privacy impact assessments and system of 
records notices. We also met with CBP and DHS officials regarding their 
current and draft privacy documents related to passenger prescreening. 
To determine the extent to which CBP has utilized risk management 
principles to guide decisions on passenger prescreening, we used a risk 
management framework developed and tested by GAO over several 
years.[Footnote 30] The risk management framework was developed by GAO 
after a review of government and private sector documents on risk 
management and interviews with recognized experts in risk management 
and terrorism prevention. We used elements of the risk management 
framework as criteria to analyze CBP's actions in developing and 
implementing its existing international passenger prescreening process, 
as well as CBP's proposed and planned actions to modify the 
international passenger prescreening process. We conducted our work, 
which included updates to our version of the report that contains 
sensitive security information, from April 2005 through November 2006 
in accordance with generally accepted government auditing standards. 

[End of section] 

Appendix II: Airline Liaison Officer Programs Implemented In Other 
Countries: 

Several countries have created airline liaison officer (ALO) programs 
and placed officers in foreign countries to reduce the number of 
improperly documented passengers traveling into their respective 
countries. These officers also assist air carrier staff in establishing 
whether individual passengers who may appear to be improperly 
documented are actually eligible to fly without resulting in fines to 
the air carrier. According to the International Air Transport 
Association Code of Conduct for Immigration Liaison Officers, the 
liaison officers' primary responsibilities include: 

* Establishing and maintaining a good working relationship with the 
airlines, local immigration, police, other appropriate authorities, and 
other liaison officers posted to that country and with consular staff 
of other missions. Additionally, liaison officers assist local 
immigration and police authorities in gathering and sharing information 
related to the movement of improperly documented passengers. 

* Training airline staff in the general principles of passport and visa 
requirements, passenger assessment, and awareness of fraud and forgery, 
and advising airline staff on whether travel documents and visas are 
genuine, forged or fraudulently obtained. 

Table 1 shows a side-by-side comparison of the characteristics of ALO 
programs from four countries. 

Table 1: The Characteristics of Selected ALO Programs: 

Characteristics: Initiation date; 
U.K. Airline Liaison Officer Program: 1993; 
Canadian Migration Integrity Program: 1989; 
Australian Airline Liaison Officer Program: 1989; 
New Zealand Airline Liaison Officer Program: 1991. 

Characteristics: Number of locations; 
U.K. Airline Liaison Officer Program: 32; 
Canadian Migration Integrity Program: 39; 
Australian Airline Liaison Officer Program: 14; 
New Zealand Airline Liaison Officer Program: 9. 

Characteristics: Approximate number of staff; 
U.K. Airline Liaison Officer Program: 34; 
Canadian Migration Integrity Program: 45; 
Australian Airline Liaison Officer Program: 20; 
New Zealand Airline Liaison Officer Program: 9. 

Characteristics: Number of officers at each location; 
U.K. Airline Liaison Officer Program: 1-2; 
Canadian Migration Integrity Program: 1- 2; 
Australian Airline Liaison Officer Program: 1-2; 
New Zealand Airline Liaison Officer Program: 1. 

Characteristics: Physical location of staff; 
U.K. Airline Liaison Officer Program: At nearest embassy; 
Canadian Migration Integrity Program: At nearest embassy; 
Australian Airline Liaison Officer Program: At airport; 
New Zealand Airline Liaison Officer Program: At nearest embassy or with 
an air carrier. 

Characteristics: Mission; 
U.K. Airline Liaison Officer Program: Reduce travel document fraud; 
Canadian Migration Integrity Program: Reduce travel document fraud; 
Australian Airline Liaison Officer Program: Reduce travel document 
fraud; 
New Zealand Airline Liaison Officer Program: Reduce number of refugee 
cases. 

Source: GAO analysis of ALO programs. 

[End of table] 

These ALO programs have incorporated various approaches regarding data 
collection, program expansion, and staffing to allow for continuous 
improvement and measurement of their liaison programs. For example, the 
Canadian Migration Integrity Officers (MIO) program developed a system 
that regularly collects data on improperly documented arrivals in 
Canada and other suspect travelers and records this information in a 
Web database to develop trend and other analyses. These data are also 
used to measure the success of the Canadian MIO program. Canadian 
officials stated that this web-based database allows Canada to 
immediately inform air carriers of violations, has assisted in reducing 
the number of violations and fines, and has allowed air carriers to 
take corrective action in a timely manner. Similarly, officials from 
the United Kingdom ALO program stated that they also collect statistics 
and intelligence to develop profiles and trends on particular flights 
for use in their program. The New Zealand ALO program utilizes 
passenger name record (PNR) data to identify the trends of travelers 
utilizing fraudulent passports to travel to their country. New Zealand 
officials stated that accessing and using PNR data in real time has 
allowed their ALO network to immediately load alert or referral 
information into its passenger-screening system so that identified 
passengers can be screened further at check-in prior to boarding. New 
Zealand officials also stated that they utilize data to conduct 
assessments and intensive reviews of the highest risk countries and 
passengers, which they then use to determine the location of airline 
liaison sites. Some New Zealand ALO sites also have direct access to 
the immigration application system, which allows their liaison officers 
to directly input alerts as necessary. The New Zealand government is 
also currently considering providing ALO officers with handheld 
computers to facilitate more efficient communications. Australian 
officials stated that at several of their ALO sites the liaison 
officers work under a particular air carrier versus going through the 
typical approval process needed to establish an overseas program, which 
may take a long time to complete. According to these officials, this 
type of arrangement provides them with the advantage of being able to 
quickly move liaison officers from location to location when needed to 
keep up with trends in illegal passenger travel. Both the United 
Kingdom and the Canadian ALO programs expanded gradually. A United 
Kingdom ALO program official validated this approach by suggesting that 
limited growth of ALO programs during the initial stages allowed 
countries to fully learn from the pilot program before expanding to 
other countries. 

[End of section] 

Appendix III: APIS Quick Query (AQQ) and APIS Minus 60 Minutes (APIS- 
60): 

In July 2006, CBP released a notice of proposed rulemaking that would 
require air carriers to transmit APIS data to CBP prior to the 
departure of all international flights departing from or bound for the 
United States. The notice of proposed rulemaking provided air carriers 
with two main options for prescreening passengers on international 
flights prior to departure. One option under the proposed rule would 
require air carriers to send APIS data on all passengers to CBP 60 
minutes before a flight's departure. The other option would allow air 
carriers to transmit APIS data on a passenger-by-passenger basis, up to 
15 minutes prior to a flight's departure. The two options are designed 
to accommodate air carriers with different types of 
operations.[Footnote 31] 

Under both options, CBP has broadly outlined the procedures for air 
carriers to receive a "not-cleared" response which would identify that 
a passenger is prohibited from boarding an aircraft. CBP would provide 
this response to the air carrier prior to the passenger boarding the 
aircraft. In addition to satisfying requirements under the Intelligence 
Reform and Terrorism Prevention Act, both options would strengthen the 
prescreening process. 

First Prescreening Option: Transmitting APIS Data 60 Minutes Prior to 
Departure: 

The first option under the proposed rule would require air carriers to 
transmit APIS data to CBP for all passengers on a flight 60 minutes 
prior to the flight's departure. This approach is known as APIS-60. The 
APIS-60 option will require an air carrier to transmit a manifest to 
CBP with APIS information for all passengers on the flight 60 minutes 
before the flight departs. This option gives CBP staff approximately 60 
minutes before flight departures to match the APIS information against 
the lists and notify the carrier if any passengers should not be 
allowed to travel. Under this option, a passenger would be issued a 
boarding pass, but if a "not cleared" response is later received from 
CBP, the air carrier would be responsible for denying boarding, or for 
removing the passenger and his or her baggage from the aircraft, if the 
passenger had already boarded the aircraft. This option, according to 
CBP officials, is likely to be preferred by smaller air carriers that 
are not dependent on having passengers transfer from connecting flights 
(and therefore whose passengers would not likely have difficulty 
checking in at least 60 minutes before flight departure). According to 
CBP officials, these air carriers might prefer APIS-60 because it would 
not require technical changes in how they transmit APIS data to CBP, 
although it would require that carriers develop the technical means to 
receive a screening response from CBP. In the fall of 2004, CBP 
initially proposed APIS-60 as the sole approach for conducting 
international prescreening. However, the International Air Transport 
Association (IATA), the Air Transport Association of America 
(ATA),[Footnote 32] and individual air carriers raised concerns about 
the economic impacts they believed would be associated with 
implementing APIS-60 across the industry. For example, they told CBP 
that network flight schedules would have to change to expand the 
minimum connection times between flights because all passengers would 
be required to check in at the airport at least 1 hour in advance of 
the flight so that information could be collected and sent to CBP on 
time. Air carriers that carry passengers arriving on connecting 
flights, which are known to operate on "hub-and spoke" 
networks,[Footnote 33] said that they would be particularly affected 
because their passengers could arrive on a variety of connecting 
flights from many other airports, and some would not arrive 60 minutes 
in advance of their connecting flight, making them ineligible to board 
their scheduled flights. In addition, according to some air carriers, 
the trend in the air carrier industry of moving toward self-service 
check-in by some passengers has shortened the time between check-in and 
scheduled flight departure times, further exacerbating the impact of 
this type of approach. In response to industry concerns that the APIS- 
60 approach would create serious problems for some carriers' 
operations, CBP offered a second option for air carriers to consider 
adopting to conduct passenger prescreening in advance of flight 
departures. 

Second Prescreening Option: Transmitting APIS Data as Each Passenger 
Checks In for a Flight: 

The second option under the proposed rule would require air carriers to 
send APIS data to CBP as each passenger checks in for a flight. CBP 
would then complete its identity match against the No Fly and Selectee 
Lists and send a response to the air carrier--generally within 4 
seconds--identifying that the passenger is either cleared or not- 
cleared for boarding. Since this approach would utilize a nearly 
instantaneous data transmission between air carriers and CBP, it is 
known as a real-time prescreening option.[Footnote 34] For those 
passengers found to be eligible to board, the response message from CBP 
would identify that the air carrier is permitted to issue a boarding 
pass and receive checked-in luggage from the passenger.[Footnote 35] 
Known as APIS Quick Query (AQQ), this approach would represent a 
significant change to the current prescreening process in that CBP 
would complete its identity matching for each passenger separately, 
instead of conducting identity matching for all passengers on a flight 
at the same time. 

CBP officials believe that larger carriers with hub-and-spoke 
operations are the most likely to choose the AQQ option, in part 
because larger carriers are more likely to have the communications 
infrastructure needed to develop and install the new interactive 
system. Some air carriers have expressed the desirability of receiving 
a real-time cleared/not cleared response from CBP earlier in the 
prescreening process such as what AQQ would provide. This timing would 
allow them to know almost immediately if an identified passenger 
represents a potential security risk. 

CBP officials are already in the process of developing the AQQ system. 
Under this approach, the federal government would bear the costs 
associated with the actual prescreening of passengers. However, air 
carriers would be responsible for any changes needed to their internal 
information technology systems and the transmission of APIS data. This 
type of real-time interactive prescreening approach is currently in use 
in several countries, including Australia, New Zealand, and Bahrain, 
through a system called Advance Passenger Processing (APP). The APP 
system was initially used by Australia's Customs Service and Department 
of Immigration and Multicultural and Indigenous Affairs, and was first 
implemented in 1995. 

AQQ and APP are both real-time interactive concepts but are different 
systems. CBP officials stated that they considered APP when determining 
which prescreening options to pursue but, in an August 2005 memorandum, 
identified a number of reasons for not adopting it.[Footnote 36] 
Nonetheless, the experience of these other countries with APP may be of 
value to CBP as it continues to develop the AQQ program. For example, 
Australian government officials told us that the successful deployment 
of the APP program was dependent upon working closely with air carriers 
to ensure system functionality upon implementation. This will be 
particularly important with regard to the AQQ given that almost 200 air 
carriers fly international routes into and out of the United States, 
assuming that a number of these air carriers decide to participate in 
AQQ.[Footnote 37] Officials from Australia and New Zealand said that 
they were willing to continue to share relevant lessons learned as CBP 
works to develop its AQQ program. 

[End of section] 

Appendix IV: Comments from the Department of Homeland Security: 

U.S. Department of Homeland Security: 
Washington, DC 20528: 

January 31, 2007: 

Ms. Cathleen A. Berrick: 
Director, Homeland Security and Justice Issues: 
U.S. Government Accountability Office: 
Washington, D. C. 20548: 

Thank you for the opportunity to comment on draft report GAO-07-55, 
"Aviation Security: Efforts to Strengthen International Passenger 
Prescreening are Underway, but Planning and Implementation Issues 
Remain." The Department of Homeland Security (DHS) concurs with the 
recommendations. 

Our specific approaches for addressing the recommendations are 
reflected below. 

Recommendation 1: Complete a strategic plan for the Immigration 
Advisory Program (IAP) and conduct program evaluations that measure the 
performance of the pilot IAP sites against predetermined goals and 
performance measures. 

Response: Concur. The IAP Strategic Plan has been completed and was 
sent for Departmental review. CBP provided a copy of the plan to GAO. 
The IAP Strategic Plan outlines the measures CBP intends to use to 
assess the performance of IAP. 

With regard to conducting program evaluations that measure the 
performance of the pilot IAP sites against predetermined goals and 
performance measures, CBP is developing systems enhancements that will 
permit simple input, extraction and analysis of empirical data 
necessary for baseline and current data. These systems enhancements 
known as Secured Integrated Government Mainframe Access (SIGMA) are 
currently in production and slated for introduction to multiple US 
ports in January 2007. SIGMA will be used to collect and analyze the 
relevant data in order to properly evaluate IAP performance. It is 
expected that SIGMA will be phased to additional ports and utilized by 
June 2007. 

Recommendation 2: Further align the Transportation Security 
Administration's (TSA) domestic and CBP's international aviation 
passenger prescreening processes and coordinate prescreening efforts. 

Response: Concur. CBP and TSA are working cooperatively to align the 
Advance Passenger Information System (APIS) Quick Query (AQQ process 
with the Secure Flight (SF) program. CBP and TSA will align the 
procedures, systems and functional requirements necessary to complete 
passenger pre-screening using one external process. 

Both CBP and TSA will work with the Center for Disease Control to 
harmonize data requirements and present a single face to the travel 
industry. It is estimated that processes and the coordination of 
prescreening efforts will be implemented by December 2007. 

Recommendation 3: Ensure that international aviation passenger 
prescreening programs are in full compliance with federal privacy laws. 

Response: Concur In Part. CBP would like to reemphasize that it is and 
has been in compliance with both the Privacy Act regarding System of 
Records Notices (SORNs) and section 208 of the E-Government Act of 2002 
regarding Privacy Impact Assessments (PIAs). At all times during the 
GAO review the Treasury Enforcement Communications System (SORN last 
published in the Federal Register on October 18, 2001) covered the 
collection of information from all persons traveling across the U.S. 
border and the APIS PIA (published in the Federal Register on March 21, 
2005) covered the change requiring mandatory submission of Advance 
Passenger Information. GAO contends that these documents are not 
legally sufficient, this position is incorrect and without merit. 

The subsequent publication by DHS and CBP on November 2 and 24, 2006, 
of a SORN and PIA for the Automated Targeting System does not change 
the fact that the collection of information in ATS-P (the Passenger 
module of ATS) and the functionality possessed in the screening and 
targeting capabilities of ATS remain unchanged in their scope since 
they were previously covered by the TECS SORN (a PIA was not required 
for ATS originally because the system, its functionality, and the 
information collected and maintained in it were all collected through 
TECS prior to December 17, 2002, and therefore grandfathered under the 
E-Government Act). Once DHS and CBP chose to create the ATS SORN to 
break out that collection from TECS and provide greater transparency to 
the privacy implications of its screening and targeting activities, it 
became necessary to create a PIA as a companion to the ATS SORN-this 
was done. 

DHS and CBP similarly intend to issue a new SORN for the Advance 
Passenger Information System (APIS) within the next 60 days and will be 
updating the existing APIS PIA to reflect this change in SORN. This 
separate creation of an APIS SORN, however, is not intended to address 
a privacy shortcoming as alleged by GAO, rather it is part of DHS and 
CBP's continuing efforts to provide greater transparency with regard to 
the privacy implications of DHS's evolving traveler screening efforts. 
DHS and CBP recognize that as new rules are issued, such as the APIS 
final rule, updates to existing PIA's may become necessary and the 
creation of new SORNs may be warranted to afford greater privacy 
protection, but none of these efforts can rightly be construed as an 
indictment of the U.S. Government's past or present compliance with its 
Privacy Laws. DHS and CBP were in compliance and as changes were 
contemplated and implemented new notices (such as those for APIS) were 
created, or are being created in the case of changes under 
contemplation. 

GAO's stated desire of a full discussion of the Passenger pre-screening 
and screening efforts of DHS and CBP ignores the legal limitations and 
scope of the Privacy Act and the E-Government Act-CBP cannot create a 
SORN to address the act of a physical inspection where no personally 
identifiable information is collected to be maintained, nor is a PIA 
warranted if no new information or technology is acquired or employed 
in the conduct of such an examination. 

Under its border search authority and predecessor legacy authority, CBP 
has collected the same type of identity information, method of travel, 
and trip details for all its history and that of its predecessor 
agencies the Immigration and Naturalization Service, the U.S. Border 
Patrol, and the United States Customs Service. The choice of DHS and 
CBP to provide a greater notice and privacy protection should not be 
mistakenly assumed to represent an admission of non-compliance; no such 
admission is being made and, lastly, no such non-compliance exists. 

Thank you for the opportunity to provide comments to the draft report. 

Sincerely, 

Signed by: 

Steven J. Pecinovsky: 
Director: 
Departmental GAO/OIG Liaison Office: 

[End of section] 

Appendix V: GAO Contacts and Staff Acknowledgments: 

GAO Contacts: 

Cathleen A. Berrick, Director, Homeland Security and Justice Issues, 
(202) 512-3404: 

Staff Acknowledgments: 

In addition to the individual named above, key contributors to the 
report include Mark Abraham, Charles Bausell, Dawn Hoff, David Hooper, 
Michele Fejfar, James Madar, Jan Montgomery, Hugh Paquette, David 
Plocher, Neetha Rao, Brian Sklar, and Stan Stenersen. 

[End of section] 

GAO Related Products: 

Aviation Security: Progress Made in Systematic Planning to Guide Key 
Investment Decisions, but More Work Remains. GAO-07-448T. Washington, 
D.C.: February 13, 2007. 

Homeland Security: Progress Has Been Made to Address the 
Vulnerabilities Exposed by 9/11, but Continued Federal Action Is Needed 
to Further Mitigate Security Risks. GAO-07-375. Washington, D.C.: 
January 2007. 

Transportation Security Administration's Office of Intelligence: 
Responses to Post Hearing Questions on Secure Flight. GAO-06-1051R. 
Washington D.C.: August 4, 2006. 

Terrorist Watch List Screening: Efforts to Help Reduce Adverse Effects 
on the Public. GAO-06-1031. Washington, D.C.: Sept. 29, 2006. 

Border Security: Stronger Actions Needed to Assess and Mitigate Risks 
of the Visa Waiver Program. GAO-06-1090T. Washington, D.C.: September 
7, 2006. 

Border Security: Stronger Actions Needed to Assess and Mitigate Risks 
of the Visa Waiver Program. GAO-06-084. Washington, D.C.: July 2006. 

Process for Admitting Additional Countries into the Visa Waiver 
Program. GAO-06-835R Washington, D.C.: July 2006. 

Aviation Security: TSA Oversight of Checked Baggage Screening 
Procedures Could Be Strengthened. GAO-06-869.Washington, D.C.: July 28, 
2006. 

Aviation Security: Management Challenges Remain for the Transportation 
Security Administration's Secure Flight Program. GAO-06-864T. 
Washington D.C.: June 14, 2006. 

Aviation Security: Significant Management Challenges May Adversely 
Affect Implementation of the Transportation Security Administration's 
Secure Flight Program. GAO-06-374T. Washington, D.C.: Feb. 9, 2006. 

Aviation Security: Transportation Security Administration Did Not Fully 
Disclose Uses of Personal Information During Secure Flight Program 
Testing in Initial Privacy Notes, but Has Recently Taken Steps to More 
Fully Inform the Public. GAO-05-864R. Washington, D.C.: July 22, 2005. 

Aviation Security: Secure Flight Development and Testing Under Way, but 
Risks Should Be Managed as System Is Further Developed. GAO-05-356. 
Washington, D.C.: March 28, 2005. 

Aviation Security: Measures for Testing the Effect of Using Commercial 
Data for the Secure Flight Program. GAO-05-324. Washington, D.C.: Feb. 
23, 2005. 

Transportation Security: Systematic Planning Needed to Prioritize 
Resources. GAO-05-357T. Washington, D.C.: February 15, 2005. 

General Aviation Security: Increased Federal Oversight is Needed, but 
Continued Partnership with the Private Sector is Critical to Long-Term 
Success. GAO-05-144. Washington, D.C.: November 10, 2004. 

Aviation Security: Challenges in Using Biometric Technologies. GAO-04- 
785T. Washington, D.C.: May 19, 2004. 

Aviation Security: Improvement Still Needed in Federal Aviation 
Security Efforts. GAO-04-592T. Washington, D.C.: March 30, 2004. 

Aviation Security: Challenges Delay Implementation of Computer- 
Assisted Passenger Prescreening System. GAO-04-504T. Washington, D.C.: 
March 17, 2004. 

Aviation Security: Computer-Assisted Passenger Prescreening System 
Faces Significant Implementation Challenges. GAO-04-385. Washington, 
D.C.: Feb. 13, 2004. 

Forum on High Performing Organizations: Metrics, Means, and Mechanisms 
for Achieving High Performance in the 21st Century Public Management 
Environment, GAO-04-343SP. Washington, D.C.: Feb. 13, 2004. 

Aviation Security: Efforts to Measure Effectiveness and Strengthen 
Security Programs. GAO-04-285T. Washington, D.C.: Nov. 20, 2003. 

Aviation Security: Efforts to Measure Effectiveness and Address 
Challenges. GAO-04-232T. Washington, D.C.: Nov. 5, 2003. 

Aviation Security: Progress Since September 11, 2001, and the 
Challenges Ahead. GAO-03-1150T. Washington, D.C.: Sept. 9, 2003. 

Airport Finance: Past Funding Levels May Not Be Sufficient to Cover 
Airports' Planned Capital Development. GAO-03-497T. Washington, D.C.: 
Feb. 25, 2003. 

Commercial Aviation: Financial Condition and Industry Responses Affect 
Competition. GAO-03-171T. Washington, D.C.: Oct. 2, 2002. 

[End of section] 

(440403): 

FOOTNOTES 

[1] The specific number of passengers identified by the U.S. government 
as a security risk is sensitive security information. 

[2] A separate process exists for prescreening passengers on U.S. 
domestic flights. 

[3] The U.S. government maintains a single consolidated terrorist watch 
list. Records are extracted from this consolidated list to conduct 
various screening activities including aviation passenger prescreening. 
Additional information about the watch list can be found on pages 7 and 
9. 

[4] 71 Fed. Reg. 40035, July 14, 2006. A notice of proposed rulemaking 
(NPRM) is an announcement published in the Federal Register of proposed 
new regulations or modifications to existing regulations, the first 
stage in the process of creating or modifying regulations. A notice of 
proposed rulemaking is intended to give the public an opportunity to 
comment on a proposed rule. 

[5] To help ensure the information we obtained was representative of 
air carriers that fly different volumes of passengers to the United 
States, we selected seven carriers that fly more than 1 million 
passengers annually into the United States, four carriers that fly 
between 500,000 and 1 million passengers annually into the United 
States, and two carriers that fly less than 500,000 passengers annually 
into the United States. 

[6] For example, in some cases a passenger may have the same name as a 
person listed on the No Fly or Selectee Lists, and an air carrier may 
require assistance from TSA to verify whether the person is, in fact, 
the same person. 

[7] Prior to January 23, 2007, an exception to this rule existed for 
citizens of the United States, and visiting citizens of Canada, Mexico, 
and Bermuda when entering the United States from most countries in the 
Western Hemisphere. However, under a plan required by the Intelligence 
Reform and Terrorism Prevention Act of 2004, as amended, all U.S. 
citizens, and citizens of Canada, Bermuda, and Mexico traveling to the 
United States as nonimmigrant visitors, generally must present a valid 
passport at air ports-of-entry. 

[8] TECS is the principal law enforcement system supporting CBP's 
counter-terrorism and regulatory compliance missions. TECS consists of 
multiple databases that maintain investigative case information, border-
crossing information, passenger information, and other information 
provided by other government agencies related to the inspection of 
persons crossing the border. CBP uses automated systems to screen large 
amounts of data against information in the TSDB, including names on the 
No Fly and Selectee Lists. 

[9] Intelligence Reform and Terrorism Prevention Act of 2004, Pub. L. 
No. 108-458, 118 Stat. 3638, Section 4012. 

[10] 71 Fed. Reg. 40035, July 14, 2006. CBP granted an extension to the 
comment period in response to a request by the aviation industry. As a 
result of the extension, comments on the proposed rule were due by 
October 12, 2006. 

[11] GAO, Aviation Security: Significant Management Challenges May 
Adversely Affect Implementation of the Transportation Security 
Administration's Secure Flight Program, GAO-06-374T (Washington, D.C.: 
Feb. 9, 2006). GAO, Aviation Security: Secure Flight Development and 
Testing Under Way, but Risk Should Be Managed as System Is Further 
Developed, GAO-05-356 (Washington, D.C.: Mar. 28, 2005). 

[12] Although the air carriers currently conduct the watch list 
matching and CAPPS prescreening functions, these processes are required 
and overseen by TSA. 

[13] IAP, or the Immigration Advisory Program, was initially referred 
to as the Immigration Security Initiative (ISI). Prior to the 
development of IAP, the legacy Immigration and Naturalization Service 
operated the Immigration Control Officers program, which was similar to 
IAP in that it stationed U.S. immigration officers abroad to screen 
U.S.-bound passengers in order to validate travel documents. 

[14] CBP was directed in the Conference Report accompanying its FY 2007 
Appropriations Act to report to the Congress on the performance of the 
IAP no later than January 23, 2007. According to CBP, they submitted 
the report to Congress prior to this deadline. 

[15] We did not independently assess these costs estimates or other 
reported program benefits. 

[16] IAP cost savings are derived from a CBP estimate based on the 
average costs to detain and remove an individual from the United States 
who is found not eligible to be admitted. 

[17] These steps are part of an overall risk management framework for 
developing and evaluating homeland security programs. In 2004, we 
developed a risk management framework that brought together recognized 
risk management practices from public and private sector reports, as 
well as through interviews with terrorism experts. This framework was 
reviewed by academic experts in risk management, field-tested on 
several GAO reviews, and applied in analyzing a variety of homeland 
security applications. For further discussion of this risk management 
framework, see GAO, Risk Management: Further Refinements Needed to 
Assess Risks and Prioritize Protective Measures at Ports and Other 
Critical Infrastructure, GAO-06-91 (Washington, D.C.: Dec. 15, 2005). 

[18] GAO, Forum on High Performing Organizations: Metrics, Means, and 
Mechanisms for Achieving High Performance in the 21st Century Public 
Management Environment, GAO-04-343SP (Washington, D.C.: Feb. 13, 2004). 

[19] GAO-06-374T and GAO-05-356. 

[20] GAO-06-374T. 

[21] The Privacy Act places limitations on agencies' collection, use, 
and disclosure of personal information maintained in systems of 
records, which are groups of personal information that are maintained 
by an agency from which personal information is retrieved by an 
individual's name or identifier. Among the act's provisions are 
requirements for agencies to give notice to the public about the use of 
their personal information. Also, when agencies establish or make 
changes to a system of records, they must notify the public by a notice 
in the Federal Register about the type of data collected; the types of 
individuals about whom information is collected; the intended "routine" 
uses of the data; the policies and practices regarding data storage, 
retrievability, access controls, retention, and disposal; and 
procedures that individuals can use to review and correct personal 
information. The E-Government Act of 2002 requires agencies to conduct 
a privacy impact assessment when using information technology to 
process personal information. 

[22] The degree to which an agency must disclose its use of personal 
information may be limited by exemptions permitted by the Privacy Act. 
To claim such exemptions, an agency must issue a rule, with an 
opportunity for public comment, identifying their exemptions and the 
reasons for taking the exemptions. 69 Fed. Reg. 41543, July 9, 2004 and 
68 Fed. Reg. 69412, 69413, Dec. 12, 2003. 

[23] 40 Fed. Reg. 28948, 28952, July 9, 1975. 

[24] CBP states that the ATS PIA was conducted merely to satisfy a DHS 
requirement that new SORNs be accompanied by PIAs, again, not because 
of any change to ATS that would require a PIA under the terms of the E- 
Gov Act. 

[25] 69 Fed. Reg. 41543, July 9, 2004. 

[26] The extent of an agency's public description of a system of 
records can be limited by exemptions permitted by the Privacy Act, 
e.g., an agency can claim an exemption from the requirement to describe 
the categories of sources of records for investigative material 
compiled for law enforcement purposes. 5 U.S.C. § 552a(k). 

[27] As noted in DHS Privacy Office's PIA guidance, privacy concerns 
can be raised where technology may only collect personal information 
for a moment. 

[28] For example, under these laws and their implementing guidance, 
CBP's modification of its systems and processes to comply with the 2004 
EU agreement on the use of European PNR data should have led CBP to 
issue a revised SORN and conduct a PIA. 

[29] We did not report on the details of this passenger information as 
it is sensitive security information. 

[30] GAO, Homeland Security: Summary of Challenges Faced in Targeting 
Oceangoing Cargo Containers for Inspection, GAO-04-557T (Washington, 
D.C.: Mar. 31, 2004). 

GAO, Risk Management: Further Refinements Needed to Asses Risks and 
Prioritize Protective Measures at Ports and Other Critical 
Infrastructure, GAO-06-91 (Washington, D.C.: Dec. 15, 2005). 

[31] Under the current international passenger prescreening process, 
CBP has identified some air carriers whose reservation systems do not 
allow them to send passenger APIS data to CBP through a batched 
electronic transmission. These air carriers include seasonal charters, 
air taxis, and air ambulances. CBP allows these air carriers to 
transmit passenger data through other means, such as through e-mail, in 
a program called eAPIS. In its NPRM, CBP noted that such air carriers 
are not likely to be able to adopt either the APIS-60 or AQQ 
prescreening options. Consequently, these air carriers will be 
permitted to continue to send passenger data through eAPIS, but they 
will still be bound by the requirement to transmit APIS data 60 minutes 
prior to departure and they must be able to receive CBP's identity 
matching results through e-mail or telephone. 

[32] IATA represents the airline industry and comprises 260 passenger 
and cargo air carriers, representing 94 percent of international 
scheduled air traffic. ATA is the nation's largest airline trade 
association and its stated purpose is to foster a business and 
regulatory environment that ensures safe and secure air transportation. 

[33] With a hub-and-spoke network, air carriers can combine local 
passengers (those passengers originating at or destined for the hub), 
with connecting passengers (those not originating at or destined for 
the hub but traveling via the hub) on the same flight. In this manner, 
carriers can serve more cities and offer greater frequency of service 
with their fleet of aircraft than is possible with point-to-point 
service, which is service from one city to another without this 
connecting network. 

[34] It is also known as an interactive approach, because CBP transmits 
a response message back to air carriers informing them whether a 
passenger can board or not board. 

[35] Passengers whose identities matched the No Fly List from this 
initial screening would not be issued a boarding pass by the air 
carrier until CBP and other agencies completed their identity vetting 
procedures and returned a message to the air carrier identifying that 
it was okay to board the passenger. If this identity verification 
process is not completed prior to the flight's departure, the passenger 
would not be permitted to travel on the flight. 

[36] Some of the reasons CBP cited for not adopting APP included high 
infrastructure and transaction costs to both air carriers and 
government, and the system's inability to adjudicate possible matches 
and allow for human intervention and response. Although CBP's memo 
refers to an evaluation of APP conducted by its Office of Field 
Operations and Office of Information Technology, CBP did not provide us 
with the supporting documentation of this evaluation despite a request 
for relevant documentation in its considerations of implementing APP. 

[37] CBP estimated that 1,280 foreign and domestic air carriers will be 
affected by its proposed rulemaking related to AQQ and APIS-60. 

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