Author
United States. Congress. Senate. Committee on Commerce, Science, and Transportation
5
United States. Congress. House. Committee on Homeland Security. Subcommittee on Transportation Security and Infrastructure Protection
4
United States. Congress. House. Committee on Homeland Security. Subcommittee on Transportation and Protective Security,
4
United States. Department of Homeland Security. Office of Inspector General
4
United States. Congress. House. Committee on Foreign Affairs
2
United States. President's Commission on Aviation Security and Terrorism
2
Elias, Bartholomew,
1
Library of Congress. Congressional Research Service,
1
United States. Congress. House. Committee on Foreign Affairs. Subcommittee on International Security, International Organizations, and Human Rights
1
United States. Congress. House. Committee on Homeland Security. Subcommittee on Intelligence, Information Sharing, and Terrorism Risk Assessment
1
United States. Congress. House. Committee on International Relations. Subcommittee on International Terrorism and Nonproliferation
1
United States. Congress. House. Committee on Transportation and Infrastructure
1
United States. Congress. Office of Technology Assessment
1
United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs
1
United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs,
1
United States. Department of Homeland Security. Office of Inspector General,
1