Japan school kids to be tagged with RFID chips | Tech News on ZDNet

Japan school kids to be tagged with RFID chips | Tech News on ZDNet: "Japanese authorities decide tracking is best way to protect kids
The rights and wrongs of using radio frequency identification (RFID) tags on humans have been debated since the tracking tags reached the technological mainstream. Now, school authorities in the Japanese city of Osaka have decided the benefits outweigh the disadvantages and will now be chipping children in one primary school.
The tags will be read by readers installed in school gates and other key locations to track the kids' movements. "

This is the short range version. Is GPS the long range version? A backpack is easy. Under the skin is hard. Will a cell phone be the intermediate? The Nextel phone already does this - kind of; how long until a parent can look up a child by location? A kidnapping victim would have the phone up until the 'evildoer' finds it & abandons it.

What if the cell phone were embedded in your wrist? Could the device talk to an earpiece using bluetooth? The kidnapper could ditch the earpiece, but not the wrist.

What about a contact lens that would show a webpage, and scroll/click via finger/facial movements? Ugh, my head hurts.