[jeffool]

If you have someone's address and an RFID reader, and they have an RFID chip, then what do you need the RFID serial number for? If you're already reading, then just go to their house and scan. If you get multiple, then go again during the day when you expect them to be at school.

That will get the vast majority.

And yes, I totally get that RT has no problem pushing bullshit; I agree. Doesn't mean we should discount it completely. We could miss a chance to improve.