References
Department of Homeland Security: Consolidation of Border and Transportation Security Agencies. Washington, D.C.: Congressional Research Service, Library of Congress, 2005.
Border Security: Inspections Practices, Policies, and Issues. Washington, D.C.: Congressional Research Service, Library of Congress, 2004.
Homeland Security: Coast Guard Operations—Background and Issues for Congress. Washington, D.C.: Congressional Research Service, Library of Congress, 2006.
Port and Maritime Security: Background and Issues for Congress. Washington, D.C.: Congressional Research Service, Library of Congress, 2005.
A Return to Private Security at Airports?: Background and Issues Regarding the Opt-Out Provision of the Aviation and Transportation Security Act. Washington, D.C.: Congressional Research Service, Library of Congress, 2004.
DHS Scraps Computer Pre-Screening System, Starts Over." Government Executive Online (2004). "