01803nam 2200409 450 991070452670332120130508072910.0(CKB)5470000002442440(OCoLC)842127308(EXLCZ)99547000000244244020130508d2013 ua 0engurmn|||||||||rdacontentrdamediardacarrierCritical infrastructure protection preliminary observations on DHS efforts to assess chemical security risk and gather feedback on facility outreach : testimony before the Subcommittee on Environment and the Economy, Committee on Energy and Commerce, House of Representatives /statement of Stephen L. Caldwell[Washington, D.C.] :United States Government Accountability Office,2013.1 online resource (16 pages) color illustrationTestimony ;GAO-13-412TTitle from title screen (viewed Apr. 26, 2013)."For release ... March 14, 2013."Includes bibliographical references.Critical infrastructure protection Hazardous substancesSecurity measuresUnited StatesTerrorismPreventionGovernment policyUnited StatesHazardous substancesSecurity measuresTerrorismPreventionGovernment policyCaldwell Stephen L.1381588United States.Congress.House.Committee on Energy and Commerce.Subcommittee on Environment and the Economy,United States.Government Accountability Office,GPOGPOBOOK9910704526703321Critical infrastructure protection3470502UNINA