4/13/2012 - Airman 1st Class Cody Frediani, 36th Civil Engineer Squadron explosive ordinance disposal technician, drives a robot through a control panel at Andersen Air Force Base, Guam, during an exercise, April 11, 2012. The robot that is remotely driven allows EOD to work at a safe distance from the area of concern, while identifying the contents. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - A Explosive Ordnance Disposal robot opens a suspicious package at Andersen Air Force Base, Guam, during an exercise, April 11, 2012. The robot is remotely driven, allowing EOD to work at a safe distance from the area of concern, while identifying the contents. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Staff Sgt. Katherine Caraballo, 36th Medical Operations Squadron immunization technician, applies a prosthetic device resembling a bullet wound at Andersen Air Force Base, Guam, during an exercise, April 12, 2012. The 36 MDOS provides members to apply prosthetic makeup to role players so responders will get an idea of what they may face during a real occurrence. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Members of the 36th Security Forces Squadron prepare to search an office after securing the Active Shooter at Andersen Air Force Base, Guam, during an exercise, April 12, 2012. The exercise allows Team Andersen to go through the steps in an Active Shooter scenario under safe conditions. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Eric Masur, 36th Civil Engineer Squadron fire and emergency services crew chief (left), and Staff Sgt. Johnetta Young of the 36th Medical Operations Squadron, provide medical care to a role player at Andersen Air Force Base, Guam, during an exercise, April 12, 2012. The exercise tests and evaluates the emergency response to incidents that may occur on base. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Airman 1st Class Michael Murray, 36th Civil Engineer Squadron fire and emergency services firefighter, pulls a tarp tight secure it around the hose, creating a water catch basin during a decontamination line set-up at Andersen Air Force Base, Guam, April 12, 2012. The DECON line will be used to spray down any patients that have came in contact with a chemical agent. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Airmen from the 36th Civil Engineer Squadron bio-environmental and hazardous materials test a powder chemical at Andersen Air Force Base, Guam, during an exercise, April 12, 2012. The analyzer they are using will provide a basic identification of the substance to give insight into what kind of tests need to be preformed. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Airman 1st Class Michael Murray 36th Civil Engineer Squadron Fire and emergency services firefighter, sprays down a role player during a chemical agent at Andersen Air Force Base, Guam, April 12, 2012. (U.S. Air Force photo/Senior Airman Carlin Leslie)

4/13/2012 - Staff Sgt. Denise Downs, 36th Civil Engineer Squadron emergency management hazardous material and chemical biological radiological nuclear environmental technician briefs Assistant Fire Chief Wil Omeara, 36 CES Fire Department, on emergency management procedures at Andersen Air Force Base, Guam, during an exercise, April 12, 2012. (U.S. Air Force photo/Senior Airman Carlin Leslie)