摘要: |
The Aviation and Transportation Security Act (Public Law 170-71) of November 19, 2001, mandated that as of December 31, 2002, all checked baggage on U.S. flights be scanned by explosive detection systems (EDSs) for the presence of potential explosives threats. In response, the Department of Homeland Security's (DHS's) Transportation Security Administration (TSA) embarked on a program to quickly procure and deploy certified EDS equipment at all U.S. airports. Although any TSA-certified method of detecting explosives will meet the requirements of the Aviation and Transportation Security Act, the requirement is met in most airports through x-ray computed tomography (CT)-based systems. Now that CT-based detection systems have been in use for more than 10 years, TSA seeks to improve the performance of its baggage screening systems through such measures as better detection algorithms and more effective EDS equipment--especially to reduce the number of false alarms and thereby reduce the costs of screening checked baggage. |