Don't Mess With Wal-Mart's RFID Pilot

At a Wal-Mart Supercenter in Denton, Texas, a hallway leading to the retail floor has two pairs of gray and black, 6-foot-high silhouettes with yellow eye-like lights within 10 feet of each other. The mission: Detect and record goods that contain tags emitting radio waves.

Down the road at a Hickory Creek store, printers from Hewlett-Packard sit on shelves with radio frequency identification (RFID) tags attached. A brief note informs customers that Wal-Mart is testing electronic tagging. The tags sit on the bottom side panel of the

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