01625oam 2200445 450 991071726160332120220418153904.0(CKB)5470000002529609(OCoLC)1303719381(EXLCZ)99547000000252960920220316d2022 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrier20 years after 9/11 examining emergency communications : hearing before the Subcommittee on Emergency Preparedness, Response, and Recovery of the Committee on Homeland Security, House of Representatives, One Hundred Seventeenth Congress, first session, October 7, 2021 and November 2, 2021Washington :U.S. Government Publishing Office,2022.1 online resource (iv, 103 pages)"Serial no. 117-32."Includes bibliographical references.20 years after 9/11 Emergency communication systemsUnited StatesTerrorismUnited StatesPreventionEmergency managementUnited StatesDisaster reliefUnited StatesNational securityUnited StatesLegislative hearings.lcgftEmergency communication systemsTerrorismPrevention.Emergency managementDisaster reliefNational securityGPOGPOGPOBOOK991071726160332120 years after 93255760UNINA