"This report represents an abbreviated version of our official use only report assessing the Automated Targeting System used by Customs and Border Protection inspectors at ports to help select intermodal cargo containers for inspection. It is based on interviews with employees and officials of relevant agencies and institutions, direct observations, and a review of applicable documents. [...] This audit was performed at various Department of Homeland Security locations along the east coast; and covered transactions and procedures current as of June 2006. [...] CBP is not consistently monitoring entry data for all shipments, resulting in some high-risk containers being allowed to leave ports without mandatory examinations. Furthermore, flaws in the Cargo Enforcement Reporting and Tracking System may result in improper container releases, and CBP still has not automated its integration of examination findings into ATS. Finally, some ports need to improve their controls over high-security bolt seals."
Department of Homeland Security, Office of Inspector General, Report No. OIG-07-72
Department of Homeland Security: http://www.dhs.gov