EVEN IF A PERSON has never seen a radio frequency identification (RDIF) tag, chances are, they are probably in possession of one. RFIDs, like this prototype, are as miniscule as a grain of ground pepper and transmit much more data. In January 2007, every new U.S. passport was imbedded with a RFID chip. From credit cards, to tires, to passports, even lipsticks, RFID chips are so numerous and cheap at this time in history, manufacturers are placing them everywhere and in everything. Their uses range from the simplistic to the possibly sinister. The chip is the small black speck.