Shame I'm out of mod points.
Fact is, even the government hasn't got a clue who you are, other than the fact that you've got a card from them with a photo and a name printed on it. You probably got that card by showing them some other card with a photo and a name printed on it. That card, you probably got because you convinced your electric company and the library that your name really WAS Bobba Fett. They probably didn't care too much as long as they got paid and the books came back.