Here's what we do:
Have the Federal govt. go bankrupt, Change the name slightly of the country, (we could be the "Together States of America", or something), and change the phone #s for all Federal agencies.
When someone calls for their money, (what is the total projected deficit now, $1 trillion?), we just say, "Hey, they owe us money too. If you find them, let us know, aight?"
EDIT: OK, this ain't original but I always thought it was funny. It was some black comedian a few years ago, can't remember who.