Beyond the bar code:
February 20, 2001 7:51 AM Subscribe
Beyond the bar code: Tags on retail products will send radio signals to their manufacturers, collecting information about consumer habits -- and raising privacy concerns. Radio tag technology is already here, used in fields such in livestock, freight-train cargo and highway tolls. The only barrier to widespread use is consumer products is price. When they can be made for a penny, expect to see them everywhere. From the March issue of MIT Technology Review.
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