John3 writes "Some people are OK with voluntarily implanting themselves with RFID chips, but how about making RFID implantation mandatory for immigrant and guest workers? VeriChip Corporation chairman Scott Silverman has proposed implanting RFID chips to register workers as they cross the border. According to Silverman, 'We have talked to many people in Washington about using it...' Privacy advocates see this move by VeriChip as a way to introduce their product to Latin America after a lukewarm reception in North America. Would immigrant workers trade their privacy for the opportunity to work in the U.S.? If this type of tracking is enacted, how long before the government decides to start tracking others for various purposes (for example, pedophiles who are released from prison)?"