Supply Chain Security: Container Security Programs Have Matured, but Uncertainty Persists over the Future of 100 Percent Scanning, Statement of Stephen L. Caldwell, Director Homeland Security and Justice, Testimony Before the Subcommittee on Border and Maritime Security, Committee on Homeland Security, House of Representatives [open pdf - 401KB]
"Cargo containers that are part of the global supply chain--the flow of goods from manufacturers to retailers--are vulnerable to threats from terrorists. The Maritime Transportation Security Act (MTSA) of 2002 and the Security and Accountability For Every (SAFE) Port Act of 2006 required the Department of Homeland Security (DHS) to take actions to improve maritime transportation security. Also, the Implementing Recommendations of the 9/11 Commission Act of 2007 (9/11 Act) required, among other things, that by July 2012, 100 percent of all U.S.-bound cargo containers be scanned. Within DHS, U.S. Customs and Border Protection (CBP) is responsible for container security programs to address these requirements. This testimony addresses, among other things, (1) efforts to gather advance information about container shipments to assess risks, (2) technologies used to protect the integrity of containers and scan them, and (3) the status of efforts to scan 100 percent of U.S.-bound containers. GAO's [Government Accountability Office] statement is based on products issued from April 2005 through July 2011, along with selected updates conducted from January to February 2012. Updates involved collecting information from CBP on the status of efforts to address GAO's prior recommendations on these issues and its plans to implement 100 percent scanning."
Government Accountability Office: http://www.gao.gov/