Crank up the power on the reader and hook up a larger antenna, and you vastly increase the range for RFID.
Google up "bluesniper" for some info on how Bluetooth range can be extended far far far beyond the Bluetooth spec.
What do YOU think: Will the government abuse RFID?
RFID can be blocked easily. The point I'm try to make is that the list is not backed up. Nor is RFID even mentioned. With 50 different states driver's license fakes are easy.

Most interesting.
Would Bluetooth be slingshot proof? Might a club scramble its electronic innards? How about a dog in heat peeing on it?
The government would need to hire a million Bluetooth guards to watch over the things, don't you think?
Let me see if I have this right. They're gonna gather locations of 250 million+ people. That glut of knowledge is gonna make exactly what happen to us all?
Do I let big brother in the door when he shows up to install the tele-viewer thingy or no?