When Mayor Nagin was talking about what folks should bring with them to the shelters, he specifically mentioned NO WEAPONS. SirKit and I had a big laugh about that. He said it reminded him of Gimli being stopped at the doors of the Golden Hall and being made to give up all his various axes, knives, etc.
It is a good warning in NO, though. It can be a brutal place.
The local newsguy at the Superdome said they were doing weapons checks before letting people in.