Air Cargo Security: TSA Field Testing Should Ensure Screening Systems Meet Detection Standards, Report to Congressional Committees [open pdf - 3MB]
From the Highlights: "According to DHS--which is responsible for ensuring the security of air cargo transported to the United States--the threat from explosives in air cargo remains significant. The TSA Modernization Act includes a provision for GAO [Government Accountability Office] to review DHS's processes for securing U.S.-bound air cargo and efforts to use CT [computed tomography] technology for air cargo screening. This report addresses, among other things, how DHS secures inbound air cargo, and the extent to which TSA's field assessment of a CT screening system included key practices for design and evaluation. GAO reviewed TSA and CBP [U.S. Customs and Border Protection] air cargo security procedures and documents and analyzed a random sample of air cargo shipment data from calendar year 2019. GAO also interviewed TSA and CBP headquarters and National Targeting Center officials, and interviewed TSA field and air carrier officials regarding operations with two foreign airports, selected based on TSA risk data and the amount of air cargo transported from these airports to the United States. This is a public version of a sensitive report that GAO issued in May 2021. Information that DHS deemed sensitive was omitted."
Government Accountability Office: https://www.gao.gov/