Please Place Your Arm in the Scanner

The time has finally come when people are asking to have RFID tags implanted in their bodies. The NewScientist reports that club goers in Barcelona are actually paying 25 Euros for the privilege of becoming walking network cookies. In return, they get premium service at the club, and can run a tab without other ID. The tags being implanted are about the size of a grain of rice, and were originally designed for pets. Since they cost ~$200 each, I have to wonder about the economics, not to mention the privacy implications. The FDA hasn't approved the chips for use in humans in the U.S.