|Air Cargo Security: TSA Field Testing Should Ensure Screening Systems Meet Detection Standards|
According to the Transportation Security Administration, the threat of explosives in air cargo coming into the United States is significant. TSA requires air carriers to x-ray or screen the cargo by other means before it enters the country. In 2020, TSA began field testing imaging technology (similar to CT medical imaging) to screen small parcels for explosives. We found TSA didn't follow key design and evaluation practices during testing. As a result, TSA can't ensure that the imaging technology meets detection requirements. We recommended TSA perform additional testing or analysis on the technology before TSA approves it for use.