United States Government Publishing Office publisher pbl distributor dst United States Government Accountability Office author aut Government Organization text government publication eng GAOREPORTS Legislative Agency Publications gao legislative 2010-08-12 U.S. Government Printing Office 2005-07-21 monographic deposited born digital 37 p. GA 1.13:GAO-05-928T https://www.govinfo.gov/app/details/GAOREPORTS-GAO-05-928T P0b002ee18039c5a6 f:d05928t DGPO 2010-08-12 2011-03-28 GAOREPORTS-GAO-05-928T machine generated eng fdlp REPORT GAOREPORTS-GAO-05-928T GAO-05-928T Aircraft pilots Aviation Aviation security Counterterrorism Homeland security Interagency relations Policy evaluation Risk assessment Security policies Security policy violations Security threats Transportation security Flight restrictions Policies and procedures Testimony A30597 Securing and defending U.S. airspace is an interagency mission that depends on close interagency coordination and information sharing. GAO was asked to review (1) the threat assessment for U.S. aviation, (2) violations of restricted airspace since September 11, 2001, (3) agencies' individual or coordinated steps to secure U.S. aviation, and (4) interagency policies and procedures to manage the response to restricted airspace violations. GAO will issue a classified report responding to this request later this year. To keep this testimony unclassified, GAO focused on the latter three questions. https://www.govinfo.gov/content/pkg/GAOREPORTS-GAO-05-928T/html/GAOREPORTS-GAO-05-928T.htm https://www.govinfo.gov/content/pkg/GAOREPORTS-GAO-05-928T/pdf/GAOREPORTS-GAO-05-928T.pdf GAO-05-928T https://www.govinfo.gov/app/details/GAOREPORTS-GAO-05-928T Testimony GAO-05-928T; Homeland Security: Agency Resources Address Violations of Restricted Airspace, but Management Improvements Are Needed; Aircraft pilots Aviation Aviation security Counterterrorism Homeland security Interagency relations Policy evaluation Risk assessment Security policies Security policy violations Security threats Transportation security Flight restrictions Policies and procedures Public Law 107-71