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Government Accountability Office
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Security-related Reports

Aviation Security

• Aviation Security: Transportation Security Administration Has Strengthened Planning to Guide Investments in Key Aviation Security Programs, but More Work Remains GAO-08-456T February 28, 2008
• Transportation Security Administration's Processes for Designating and Releasing Sensitive Security Information GAO-08-232R November 30, 2007
• Aviation Security: Vulnerabilities Exposed Through Covert Testing of TSA's Passenger Screening Process GAO-08-48T November 15, 2007
• Transportation Security: TSA Has Made Progress in Implementing the Transportation Worker Identification Credential Program, but Challenges Remain GAO-08-133T October 31, 2007
• Aviation Security: DHS Has Made Progress in Securing the Commercial Aviation System, but Key Challenges Remain GAO-08-139T October 16, 2007
• Aviation Security: Federal Coordination for Responding to In-flight Security Threats Has Matured, but Procedures Can Be Strengthened GAO-07-891R July 31, 2007
• Aviation Security: Foreign Airport Assessments and Air Carrier Inspections Help Enhance Security, but Oversight of These Efforts Can Be Strengthened GAO-07-729, May 11, 2007 [PDF 2.02MB]
• Aviation Security: TSA's Change to Its Prohibited Items List Has Not Resulted in Any Reported Security Incidents, but the Impact of the Change on Screening Operations Is Inconclusive GAO-07-623R, April 25, 2007
• Aviation Security: Risk, Experience, and Customer Concerns Drive Changes to Airline Passenger Screening Procedures, but Evaluation and Documentation of Proposed Changes Could Be Improved GAO-07-634, April 16, 2007 [PDF 1.61MB]
• Aviation Security: Cost Estimates Related to TSA Funding of Checked Baggage Screening Systems at Los Angeles and Ontario Airports GAO-07-445, March 30, 2007
• Aviation Security: TSA's Staffing Allocation Model Is Useful for Allocating Staff among Airports, but Its Assumptions Should Be Systematically Reassessed GAO-07-299, February 28, 2007 [PDF 2.59MB]
• Aviation Security: Progress Made in Systematic Planning to Guide Key Investment Decisions, but More Work Remains GAO-07-448T, February 13, 2007
• Transportation Security Administration's Office of Intelligence: Responses to Posthearing Questions Regarding Secure Flight GAO-06-1051R, August 4, 2006
• Aviation Security: TSA Oversight of Checked Baggage Screening Procedures Could Be Strengthened GAO-06-869, July 28, 2006
• Aviation Security: Management Challenges Remain for the Transportation Security Administration's Secure Flight Program GAO-06-864T, June 14, 2006
• Aviation Security: Further Study of Safety and Effectiveness and Better Management Controls Needed If Air Carriers Resume Interest in Deploying Less-than-Lethal Weapons GAO-06-475, May 26, 2006
• Aviation Security: Flight and Cabin Crew Member Security Training Strengthened but Better Planning and Internal Controls Needed. GAO-05-781, September 6, 2005.
• Aviation Security: Transportation Security Administration Did Not Fully Disclose Uses of Personal Information During Secure Flight Program Testing in Initial Privacy Notices, but Has Recently Taken Steps to More Fully Inform the Public. GAO-05-864R, July 22, 2005. [PDF 3.7MB]
• Homeland Defense: Agency Resources Address Violations of Restricted Airspace but Management Improvements Are Needed, by Davi D'Agostino, director, defense capabilities and management, before the House Committee on Government Reform. GAO-05-928T, July 21, 2005.
• International Air Passengers: Staffing Model for Airport Inspections Personnel Can Be Improved. GAO-05-663, July 15, 2005.
• Aviation Security: Better Planning Needed to Optimize Deployment of Checked Baggage Screening Systems, by Cathleen A. Berrick, director, homeland security and justice, before the Subcommittee on Economic Security, Infrastructure Protection, and Cybersecurity, House Committee on Homeland Security. GAO-05-896T, July 13, 2005.
• Transportation Security Administration: Clear Policies and Oversight Needed for Designation of Sensitive Security Information. GAO-05-677, June 29, 2005.
• Nonproliferation: Improvements Needed in Countering Threat for Man-Portable Air Defense Systems. GAO-04-519, May 13, 2005. [PDF 4.2MB]
• Aviation Security: Screener Training and Performance Measurement Strengthened, but More Work Remains. GAO-05-457, May 2, 2005. [PDF 1.5MB]
• Aviation Security: Secure Flight Development and Testing Under Way, but Risks Should Be Managed as System Is Further Developed. GAO-05-356, March 28, 2005.
• Aviation Security: Systematic Planning Needed to Optimize the Deployment of Checked Baggage Screening Systems. GAO-05-365, March 15, 2005. [PDF 3.5MB]
• Aviation Security: Measures for Testing the Impact of Using Commercial Data for the Secure Flight Program. GAO-05-324, February 23, 2005.
• Transportation Security: Systematic Planning Needed to Optimize Resources, by Cathleen A. Berrick, director, homeland security and justice, before the Senate Committee on Commerce, Science, and Transportation. GAO-05-357T, February 15, 2005.
• General Aviation Security: Increased Federal Oversight Is Needed, but Continued Partnership with Private Sector Is Critical to Long-Term Success. GAO-05-144, November 10, 2004. [PDF 6.5MB]
• Aviation Safety: FAA Needs to Strengthen the Management of Its Designee Program. GAO-05-40, October 8, 2004.
• Transportation Security Administration: High-Level Attention Needed to Strengthen Acquisition Function. GAO-04-544, May 28, 2004.
• Aviation Security: Further Steps Needed to Strengthen the Security of Commercial Airport Perimeters and Access Controls. GAO-04-728, June 4, 2004.
• Budget Issues: Reprogramming of Federal Air Marshal Service Funds in Fiscal Year 2003 (GAO-04-577R), March 31, 2004 [PDF 445 Kb]
• Aviation Security: Improvement Still Needed in Federal Aviation Security Efforts, by Norman J. Rabkin, managing director, homeland security and justice, before the Subcommittee on Aviation, Senate Committee on Commerce, Science, and Transportation. (GAO-04-592T), March 30, 2004 [PDF 368 KB]
• Aviation Security: Challenges Delay Implementation of Computer-Assisted Passenger Pre-Screening System, by Norman J. Rabkin, managing director, homeland security and justice, before the Subcommittee on Aviation, House Committee on Transportation and Infrastructure. (GAO-04-504T), March 17, 2004 [PDF 224 KB]
• Aviation Security: Factors Could Limit the Effectiveness of the Transportation Security Administration's Efforts to Secure Aerial Advertising Operations. (GAO-04-499R), March 5, 2004 [PDF 243 KB]
• Airport Security: Challenges to Airport Passenger and Baggage Screening, by Cathleen A. Berrick, director, homeland security and justice, before the Subcommittee on Aviation, House Committee on Transportation and Infrastructure. (GAO-04-440T), February 12, 2004 [PDF 341 KB]
• Aviation Security: Computer-Assisted Passenger Prescreening System Faces Significant Implementation Challenges. (GAO-04-385), February 12, 2004 [PDF 623 KB]
• Posthearing Questions Related to Aviation and Port Security (GAO-04-315R) December 12, 2003 [PDF 90 Kb]
• Aviation Security: Efforts to Measure Effectiveness and Strengthen Security Programs, by Cathleen A. Berrick, director, homeland security and justice, before the House Committee on Government Reform, 9GAO-04-285T), November 20, 2003 [PDF 261 Kb]
Aviation Security: Federal Air Marshal Service Is Addressing Challenges of Its Expanded Mission and Workforce, but Additional Actions Needed, (GAO-04-242), November 19, 2003 [PDF 968 Kb]
• Aviation Security: Efforts to Measure Effectiveness and Address Challenges, by Cathleen A. Berrick, director, homeland security and justice, before the Senate Committee on Commerce, Science, and Transportation, (GAO-04-232T), November 5, 2003 [PDF 705 Kb]
• Airport Passenger Screening: Preliminary Observations on Progress Made and Challenges Remaining, (GAO-03-1173), September 24, 2003 [PDF 344 Kb]
• Aviation Security: Progress Since September 11th and the Challenges Ahead, by Gerald L. Dillingham, director, physical infrastructure, before the Senate Committee on Commerce, Science, and Transportation, (GAO-03-1150T), September 9, 2003 [PDF 2.26 Mb]
• Aviation Security: Vulnerabilities and Potential Improvements for the Air Cargo Security System, December 20 2002 (GAO-03-344) [PDF 925 Kb]
• AVIATION SECURITY: Registered Traveler Program Policy and Implementation Issues, November 2002 (GAO-03-253) [PDF 361 Kb]
• AVIATION SECURITY: Transportation Security Administration Faces Immediate and Long-Term Challenges -- Statement of Gerald L. Dillingham, Director, Physical Infrastructure Issues, July 25, 2002, (GAO-02-971T) [PDF 208 KB]
• Information Concerning the Arming of Commercial Pilots, June 28, 2002, (GAO-02-822R) [PDF 107 Kb]
• Aviation Safety: Undeclared Air Shipments of Dangerous Goods and DOT's Enforcement Approach, January 10 2002 (GAO-03-22) [PDF 1.3 Mb]
• AVIATION SECURITY Vulnerabilities in, and Alternatives for, Preboard Screening Security Operations -- Statement of Gerald L. Dillingham Director, Physical Infrastructure Issues, September 25, 2001 (GAO-01-1171T) [PDF 105 Kb]
• AVIATION SECURITY: Weaknesses in Airport Security and Options for Assigning Screening Responsibilities -- Statement of Gerald L. Dillingham Director, Physical Infrastructure Issues, September 21, 2001 (GAO-01-1165T) [PDF 107 Kb]
• AVIATION SECURITY: Terrorist Acts Illustrate Severe Weaknesses in Aviation Security -- Statement of Gerald L. Dillingham Director, Physical Infrastructure Issues, September 20, 2001 (GAO-01-1166T) [PDF 103 Kb]
• AVIATION SECURITY: Terrorist Acts Demonstrate Urgent Need to Improve Security at the Nation's Airports -- Statement of Gerald L. Dillingham, Director, Physical Infrastructure Issues, September 20, 2001 (GAO-01-1162T) [PDF 103 Kb]
• COMMERCIAL AVIATION: A Framework for Considering Federal Financial Assistance -- Statement of David M. Walker, Comptroller General of the United States, September 20, 2001 (GAO-01-1163T) [PDF 82 Kb]
• Aviation Security: Vulnerabilities Still Exist in the Aviation Security System [T-RCED/AIMD-00-142] 04/06/2000
• Aviation Security: FAA's Actions To Study Responsibilities and Funding for Airport Security and To Certify Screening Companies (Letter Report, 02/25/99, GAO/RCED-99-53).
• Aviation Security: Technology's Role in Addressing Vulnerabilities(Testimony, 09/19/96, GAO/T-RCED/NSIAD-96-262)
• Aviation Security: Urgent Issues Need to Be Addressed (Testimony, 09/11/96, GAO/T-RCED/NSIAD-96-251)
• Aviation Security: Immediate Action Needed to Improve Security(Testimony, 08/01/96, GAO/T-RCED/NSIAD-96-237)
• Aviation Security: Development of New Security Technology Has Not Met Expectations (Chapter Report, 05/19/94, GAO/RCED-94-142). [PDF Version 5.07 Mb]