Have we lost our...forget it.

RFID passports.

RFID is okay for inventory purposes, which is sort of what it's designed for, but bad, bad, bad for anything else. I will break it down very simply for you: everything that the people who think that this is a massively stupid idea are saying is correct. Everyone who says anything remotely positive about this idea is wrong. It's as easy as that.

I'm in no way suggesting that you microwave your passport, but RFID chips are susceptible to that sort of thing.