01771nam 2200421 a 450 991069639470332120071218085859.0(CKB)5470000002376880(OCoLC)184840544(EXLCZ)99547000000237688020071218d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierTransportation security[electronic resource] TSA has made progress in implementing the Transportation Worker Identification Credential Program, but challenges remain : testimony before the Committee on Homeland Security, House of Representatives /statement of Cathleen A. Berrick[Washington, D.C.] :U.S. Govt. Accountability Office,[2007]19 pages digital, PDF fileTestimony ;GAO-08-133 TTitle from title screen (viewed on Dec. 10, 2007)."For release ... October 31, 2007."Paper version available from: U.S. Govt. Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.Includes bibliographical references.Transportation security National securityUnited StatesTerrorismPreventionGovernment policyUnited StatesNational securityTerrorismPreventionGovernment policyBerrick Cathleen A1381679United States.Congress.House.Committee on Homeland Security.United States.Government Accountability Office.GPOGPOBOOK9910696394703321Transportation security3440616UNINA