Imagine, while traveling overseas, that you're wearing a big target on the back and front of your shirt saying 'American traveler'. One of the things we're taught to do is to prudently blend in with other people, no matter where we're traveling.

Of course you wouldn't choose to wear a sign saying 'I'm an American tourist', but the State Department is proposing a new type of passport that would have the same effect.

RFID in Passports, continued