On November 2, 2006, the Department of Homeland Security posted a System of Records Notice (SORN) in the Federal Register regarding the deployment of the Automated Targeting System (ATS), to screen travelers entering the United States by car, plane, ship, or rail. Originally developed to help identify potential cargo threats, ATS is a module of the Treasury Enforcement Communications System (TECS). TECS is described as an “overarching law enforcement information collection, targeting, and sharing environment.”