The best quote:
Hiding from the census taker in 2010 will be nearly impossible, given the sweeping changes to Census Bureau policies soon to be implemented. Citizens who fail to return their census forms by mail will be visited by a representative of the Bureau—now part of the Department of Justice. Enumerators will be authorized to detain non-respondents for up to seven days, during which time they will be educated on the history and importance of the census, and encouraged to complete their forms. Enumerators will be forbidden from inflicting physical harm on the detainees, with "physical harm" defined in the new regulations as "anything that might leave a bruise."
Read the whole thing - it's worth it.
Oh, how I want to be a census taker in 2010!!!