] That raises the disquieting possibility of being tracked
] though our personal possessions. Imagine: The Gap links
] your sweater's RFID tag with the credit card you used to
] buy it and recognizes you by name when you return.
] Grocery stores flash ads on wall-sized screens based on
] your spending patterns, just like in "Minority Report."
] Police gain a trendy method of constant, cradle-to-grave
] surveillance.

RFID tags: Big Brother in small packages - Tech News - CNET.com