Wireless World: Shopping with nano-tags

From Interest! Alert High Tech News, Mar 19, 2004 ... CHICAGO March 19 UPI A man takes a shirt off the rack at Marks Spencer the upscale retailer in London and goes to the clerk at the cash register to pay for it. Before he has even reached the check-out a tiny chip called a radio frequency identification or RFID encased in the price tag on the item has signaled the store's wireless network ...