[vqchuang]

I don't know if this has been covered yet, I only had a chance to skim the posts above, but I would like to point out that in order for someone to properly take the information off of an RFID tag would be to stand RIGHT next to them. RFID tags do not contain power sources of their own and actually use the ID tag readers own radio signal as a power source.

Therefore in order for the school to keep track of the whereabouts of students, they would have to install tag readers pretty much every other foot of the school all over the walls and on the ground. Even then they would probably only be able to tell that Jimmy was at school, but not know where he was exactly on campus.

Thank you for your time.
vqchuang