read the Wiki on RFID implants--paying particular attention to the "Future Use" part:

http://en.wikipedia.org/wiki/Microchip_implant_(human)Link(Links to an external site.).

Would you be in favor of RFID implants? How aboutfor children so parents could know where they are. Would there still be missing children if RFID implants were used in children? Choose a position and support it.