Radiation

How Can Police Tell If Somebody Has Been Handling Radioactive Materials?

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FBI investigators and homeland security officers have long relied on one test to determine if suspects have touched radioactive materials—the old pee-in-the-cup trick. The only problem is, the human body processes fluids so fast that it's only useful if the person had the stuff in hand within the last week. But a new test works even if the subject hasn't touched anything radioactive in a year. It could help out big time when it comes to tracking down potential smugglers and terrorists. Watch the video below to learn about it.

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