I came across this article on the RFID tag situation, already discussed at bit in the Michellin Putting RFID Tags in EVERY Tire thread. This article supplies different information; the author has found that eventually, just about all store items will be "tagged". Some of these tags will be the size of a grain of pepper. He takes a paranoid view of the future, including being tracked by these tags, or having computer systems connect your RFID tags to your credit card... allowing stores to know where you shop. Or even window shop. Right now the developers are still trying to decide if the tags should be deactived at the checkout counter, or left active. Detection range with standard equipment would be about 15 feet. An interesting item in the article -- where the author talks to a techie -- says that it would be easy to build "beefed up" RFID detectors which could pick up the tag's information at hundreds of feet. It does say one company is designing a deactivator which will be available for home use. I feel safer already!