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WASHINGTON (AP) - 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.
The Bush administration said Monday that within 45 days it will give U.S. Customs and Border Protection agents the tools they need to verify such documents in the future.
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