Thomas J. Harrington– Associate Executive Assistant Director, National Security Branch

Thomas J. Harrington was appointed by the FBI Director as the Associate Executive Assistant Director (AEAD) for the National Security Branch (NSB) in March 2008. In this new role, AEAD Harrington will continue to lead the Strategic Execution Team, which Director Mueller established in September 2007 to build on and accelerate efforts to enhance the FBI’s performance of its national security mission.

Before his appointment as the AEAD-NSB, Mr. Harrington served as the Deputy Assistant Director (DAD) for Counterterrorism, Operational Support Branch. During his tenure as DAD, he had administrative oversight of the division as well as managerial responsibility for the Foreign Terrorist Tracking Task Force, the Counterterrorist Operation Response Section, and the National Threat Center. He also played a major role in the establishment of the NSB in 2005.

From 1999 to 2002, Mr. Harrington managed the Organized Crime/Drug and Violent Crimes/Major Offenders Programs as the Assistant Special Agent in Charge (ASAC) of the Philadelphia Division. While serving as a Supervisory Special Agent in the Philadelphia Division, Mr. Harrington led the Economic Crimes Squad and was the White-Collar Crime Coordinator. Mr. Harrington was also instrumental in the proposal and subsequent establishment of a Russian/Eastern European Criminal Enterprise Squad in Philadelphia.

Mr. Harrington began his career as an FBI special agent in September 1984. Following a period of training, he was assigned to the FBI field office in Denver, Colorado. In Denver, Mr. Harrington specialized in white-collar crime matters, and, more specifically, in financial institution and securities fraud. In June 1991, he was assigned supervisory duties in the Criminal Investigative Division at FBI Headquarters in Washington, D.C. As part of his Headquarters assignment, Mr. Harrington oversaw the FBI's national insurance and securities fraud initiatives.

Mr. Harrington is a 1978 graduate of Mount St. Mary's College, Emmitsburg, Maryland, and a 1990 graduate of the Stonier Graduate School of Banking, American Banker's Association, University of Delaware, Newark, Delaware. Mr. Harrington received the Presidential Rank Award for Distinguished Executive in 2006.