Aviation Security: Measures for Testing the Impact of Using Commercial Data for the Secure Flight Program

The Transportation Security Administration (TSA) is developing a new passenger prescreening program, known as Secure Flight. Under the Secure Flight program, TSA plans to take over, from commercial airlines, the responsibility for comparing identifying information of domestic airline passengers against information on known or suspected terrorists. TSA is also considering using commercial data as part of Secure Flight if the data are shown, through testing, to improve the results of these comparisons. In the 2005 Homeland Security Appropriations Act, Congress mandated that, prior to testing the use of commercial data for Secure Flight, TSA develop measures to assess the impacts of using commercial data on aviation security, and that GAO review the measures. In response to that mandate, we reviewed TSA's measures for commercial data testing and briefed congressional staff on January 11, 2005, on our findings. This report documents the results of our review, which we presented in that briefing.