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Airport security : the necessary improvements to secure America's airports : hearing before the Subcommittee on Transportation Security and Infrastructure Protection of the Committee on Homeland Security, House of Representatives, One Hundred Tenth Congress, first session, April 19, 2007
- "Airport security : the necessary improvements to secure America's airports : hearing before the Subcommittee on Transportation Security and Infrastructure Protection of the Committee on Homeland Security, House of Representatives, One Hundred Tenth Congress, first session, April 19, 2007"@en
- "Airport security the necessary improvements to secure America's airports : hearing before the Subcommittee on Transportation Security and Infrastructure Protection of the Committee on Homeland Security, House of Representatives, One Hundred Tenth Congress, first session, April 19, 2007"
- "Airport security the necessary improvements to secure America's airports : hearing before the Subcommittee on Transportation Security and Infrastructure Protection of the Committee on Homeland Security, House of Representatives, One Hundred Tenth Congress, first session, April 19, 2007"@en