01387oam 2200397 a 450 991070210130332120120807064730.0(CKB)5470000002423110(OCoLC)797382578(EXLCZ)99547000000242311020120630d2012 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierCritical infrastructure protection[electronic resource] DHS could better manage security surveys and vulnerability assessments : report to Congressional requesters[Washington, D.C.] :U.S. Govt. Accountability Office,[2012]1 online resource (ii, 82 pages) illustrationsTitle from title screen (viewed on June 30, 2012)."May 2012.""GAO-12-378."Includes bibliographical references.Critical infrastructure protection Infrastructure (Economics)Security measuresUnited StatesNational securityUnited StatesInfrastructure (Economics)Security measuresNational securityDIDDIDAAUGPOBOOK9910702101303321Critical infrastructure protection2658893UNINA