Agreed. Posting a No Trespassing sign only make sense if you have a larger property. For someone in a more crowded suburb or condo like situation, not so much. Putting a sign out in that case would not be advisable. They will be creating lists to identify resistance. But, sometimes Patriots can't help shooting themselves in the foot just to make a statement. The answer is simple... don't answer the door - especially if they look like government census workers wearing lanyards and carrying their little electronic clipboards. People that know me do not come to my home without letting me know in advance. Therefore, I have no reason to answer the door if I am not expecting anyone. I would much rather be on a list as a "no contact" than as "one of those."