WashTech.com part of the Washington PostTech Companies See Market for Detection.

One machine can detect stress by reading flickering eye movements. Another uses X-rays to conduct virtual strip-searches that can spot a razor blade taped to a person's inner thigh. A third videotapes faces in a crowded room and matches them to known terrorists.

For several years, cutting-edge identification and detection technologies have helped specialists in the battle against terrorism, but the Sept. 11 attacks on the Pentagon and the World Trade Center could transform these once exotic gadgets into everyday tools of airport safety. [Privacy Digest]

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