01913nam 2200421 a 450 991069739750332120080805154232.0(CKB)5470000002386953(OCoLC)238731891(EXLCZ)99547000000238695320080805d2008 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierTransportation security[electronic resource] efforts to strengthen aviation and surface transportation security continue to progress, but more work remains : testimony before the Subcommittee on Transportation Security and Infrastructure Protection, Committee on Homeland Security, House of Representatives /statement of Cathleen A. Berrick[Washington, D.C.] :U.S. Govt. Accountability Office,[2008]22 pages digital, PDF fileTestimony ;GAO-08-651 TTitle from title screen (viewed on May 28, 2008)."For release ... April 15, 2008."Paper version available from: U.S. Govt. Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.Includes bibliographical references.Transportation security TransportationSecurity measuresUnited StatesAeronauticsSecurity measuresUnited StatesTransportationSecurity measuresAeronauticsSecurity measuresBerrick Cathleen A1381679United States.Congress.House.Committee on Homeland Security.Subcommittee on Transportation Security and Infrastructure Protection.United States.Government Accountability Office.GPOGPOBOOK9910697397503321Transportation security3440616UNINA