01343nam 2200397 450 991070392620332120140127115706.0(CKB)5470000002447087(OCoLC)869216633(EXLCZ)99547000000244708720140127d2013 ua 0engurmn|||||||||rdacontentrdamediardacarrierGPS disruptions efforts to assess risks to critical infrastructure and coordinate agency actions should be enhanced : report to congressional requesters[Washington, D.C.] :United States Government Accountability Office,2013.1 online resource (ii, 53 pages) color illustrationsTitle from title screen (viewed Jan. 9, 2014)."November 2013.""GAO-14-15."Includes bibliographical references.GPS disruptions Global Positioning SystemElectromagnetic interferenceInfrastructure (Economics)Global Positioning System.Electromagnetic interference.Infrastructure (Economics)GPOGPOBOOK9910703926203321GPS disruptions3544465UNINA