ShareThis11 Body Parts Defense Researchers Will Use to Track You 25 Jan 2013 Cell phones that can identify you by how you walk. Fingerprint scanners that work from 25 feet away. Radars that pick up your heartbeat from behind concrete walls… Biometrics had a boom after 9/11. Gobs of government money poured into face and iris recognition systems; the Pentagon alone spent nearly $3 billion in five years, and the Defense Department was only one of many federal agencies funneling cash in the technologies. Civil libertarians feared the worst as face-spotters were turned on crowds of citizens in the hopes of catching a single crook.
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