All of the money we spent on Homeland Security has been wasted. Nothing stops nuclear materials from crossing our borders.

Undercover investigators slipped radioactive material _ enough to make two small "dirty bombs" _ across U.S. borders in Texas and Washington state in a test last year of security at American points of entry.

Radiation alarms at the unidentified sites detected the small amounts of cesium-137, a nuclear material used in industrial gauges. But U.S. customs agents permitted the investigators to enter the United States because they were tricked with counterfeit documents.

Oh shit!