Author
United States. Congress. House. Committee on Homeland Security. Subcommittee on Transportation Security and Infrastructure Protection
6
United States. Congress. House. Committee on Homeland Security. Subcommittee on Transportation and Protective Security,
4
United States. Congress. House. Committee on Homeland Security,
2
United States. Congress. House. Committee on Homeland Security. Subcommittee on Counterterrorism and Intelligence,
2
United States. Congress. House. Committee on Homeland Security. Subcommittee on Emergency Preparedness, Response and Communications,
2
United States. Congress. House. Committee on Homeland Security. Subcommittee on Transportation Security,
2
United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security,
2
United States. Government Accountability Office
2
Brauner, Florian,
1
Elias, Bartholomew,
1
Frittelli, John,
1
Jenkins, Brian Michael
1
Jeszeck, Charles A.
1
Library of Congress. Congressional Research Service,
1
Lord, Stephen M.
1
Peterman, David Randall,
1
SpringerLink (Online service)
1
United States. Congress. House. Committee on Homeland Security
1
United States. Congress. House. Committee on Homeland Security. Subcommittee on Emergency Preparedness, Science, and Technology
1
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways, Transit, and Pipelines
1
United States. Congress. House. Select Committee on Homeland Security. Subcommittee on Infrastructure and Border Security
1
United States. Congress. Senate. Committee on Commerce, Science, and Transportation,
1
United States. Congress. Senate. Committee on Governmental Affairs
1
United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Crime and Drugs
1
United States. Department of Homeland Security. Office of Inspector General,
1
United States. Transportation Security Administration
1