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''Michelin, which manufactures 800,000 tires a day, is going to insert RFID tags into its tires. The tag will store a unique number for each tire, a number that will be associated with the car's VIN (Vehicle Identification Number). Good for Michelin, and car manufacturers, and fighting crime. Potentially bad for you. Who will assure your privacy? Do you really want your car's tires broadcasting your every move?''
''Right now, you can buy a hammer, a pair of jeans, or a razor blade with anonymity. With RFID tags, that may be a thing of the past. Some manufacturers are planning to tag just the packaging, but others will also tag their products. There is no law requiring a label indicating that an RFID chip is in a product. Once you buy your RFID-tagged jeans at The Gap with RFID-tagged money, walk out of the store wearing RFID-tagged shoes, and get into your car with its RFID-tagged tires, you could be tracked anywhere you travel.''
http://www.securityfocus.com/columnists/169