Critics worried about retail RFID potential

Associated Press: RFID tags at retail can improve supply-chain efficiency, cut theft, and guarantee that brand-name products are authentic, not counterfeit. At a store, RFID doorways could scan your purchases automatically as you leave, eliminating tedious checkouts.

The problem, critics say, is that microchipped products might very well do a whole lot more. With tags in so many objects, relaying information to databases that can be linked to credit and bank cards, almost no aspect of life may soon be safe from the prying eyes of corporations and governments, says Mark Rasch, former head of the computer-crime unit of the U.S. Justice Department.

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