The See-It-All Chip

Radio-frequency identification--with track-everything-anywhere capability, all the time--is about to change your life

In Arizona a busy mom with kids charges fast food to her American Express by flashing a key fob in front of a plastic box. In London the same technology helps retailer Marks & Spencer track gourmet dinners to prevent spoilage. The U.S. military used it in Iraq to electronically search supplies and keep tabs on hospital patients. In Singapore and Helsinki DHL tested it in anticipation of tracking the 160 million packages it ships annually. And in Arkansas the world's biggest retailer, Wal-Mart, is telling its top 100 suppliers to put it on all cases and pallets by 2005, or...

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