The 2010 census is coming around. I plan on neither mailing back any mailings, nor answering the door to any census workers. I figure there is no law that requires me to answer my own door.

What can the federal government do to me?

I have heard they can fine me 0, is this true?

Any other penalties?

I think the threat of a fine is laughable, how would they know who to fine unless they have my name? And if they have my name, they have me counted.