Slideshow: Terror 'Mules': Bombs in Bodies

Drugs have been smuggled in body cavities for years. What's to stop a suicide bomber from swallowing plastic explosives to get them on a plane? Very little, experts say, and especially not the current airport security measures. By Erik Baard.
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The Conpass Digital Bodyscanner can be used to detect contraband materials on people.MMC International

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This X-ray negative image shows C-4 plastic explosives hidden below the chest of a person.

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