01747nam 2200409 a 450 991070222330332120121105154312.0(CKB)5470000002425918(OCoLC)815972381(EXLCZ)99547000000242591820121105d2012 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierCritical infrastructure protection[electronic resource] DHS is taking action to better manage its chemical security program, but it is too early to assess results : testimony before the Subcommittee on Homeland Security, Committee on Appropriations, House of Representatives /statement of Stephen L. Caldwell[Washington, D.C.] :U.S. Govt. Accountability Office,[2012]1 online resource (32 pages) color illustrationsTestimony ;GAO-12-515TTitle from PDF title screen (viewed Oct. 25, 2012)."For release ... July 26, 2012."Includes bibliographical references.Critical infrastructure protection Hazardous waste sitesSecurity measuresUnited StatesNational securityUnited StatesHazardous waste sitesSecurity measuresNational securityCaldwell Stephen L1381588United States.Congress.House.Committee on Appropriations.Subcommittee on Homeland Security.United States.Government Accountability Office.GPOGPOBOOK9910702223303321Critical infrastructure protection3470502UNINA