VeriChip

WASHINGTON — A new Defense Department-funded study is aimed at developing a microchip the size of a grain of rice that would be implanted in soldiers wounded on the battlefield, but the idea raises privacy concerns for at least one major veterans group.

Don't carry RFID? You might be surprised; the short-range ID technology is currently found in everything from US passports to swipeless credit cards to public transit passes to World Cup tickets to car keys to the building access pass for your office building. A few of the digerati even elect to have RFID implants from VeriChip slipped beneath their skin in order to use them as cashless payment systems.