01440oam 2200385 450 991070496920332120131118080953.0(CKB)5470000002446052(OCoLC)845632320(EXLCZ)99547000000244605220130601d2013 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierCritical infrastructure protection DHS efforts to assess chemical security risk and gather feedback on facility outreach can be strengthened : report to congressional requesters[Washington, D.C.] :United States Government Accountability Office,2013.1 online resource (ii, 51 pages) color illustrationsTitle from title screen (viewed Nov. 18, 2013)."April 2013.""GAO-13-353."Includes bibliographical references.Critical infrastructure protection Chemical plantsSecurity measuresGovernment policyUnited StatesChemical terrorismUnited StatesPreventionChemical plantsSecurity measuresGovernment policyChemical terrorismPrevention.DIDDIDGPOBOOK9910704969203321Critical infrastructure protection2658893UNINA