01923oam 2200421 a 450 991069886510332120090513082847.0(CKB)5470000002397213(OCoLC)311601452(EXLCZ)99547000000239721320090302d2009 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierHomeland defense[electronic resource] actions needed to improve management of air sovereignty alert operations to protect U.S. airspace : report to congressional requesters[Washington, D.C.] :U.S. Govt. Accountability Office,[2009]ii, 51 pages digital, PDF fileTitle from title screen (viewed on Mar. 2, 2009)."January 2009.""GAO-09-184."Includes bibliographical references.GAO examined the extent to which (1) NORAD has adopted a risk-based management approach to determine [air sovereignty alert] ASA operational requirements; (2) the Air Force has implemented ASA operations as a steady-state mission in accordance with Department of Defense (DOD), NORAD, and Air Force directives and guidance; (3) the Air Force assesses the readiness of units conducting ASA operations; and (4) the Air Force faces challenges in sustaining ASA operations for the future and what plans, if any, it has to address such challenges.Homeland defense Missile attack warning systemsUnited StatesAir defensesUnited StatesTerrorismPreventionMissile attack warning systemsAir defensesTerrorismPrevention.ESRESRGPOBOOK9910698865103321Homeland defense3424085UNINA