Actually, I went down to NOLA 3 times after Katrina to help clean up and rebuild. I had muddy hands and feet and sore back as we gutted houses. I have a very good idea as to what happened, I witnessed the aftermath with my own eyes and ears. I heard some rather amazing stories, I also witnessed and heard profoundly sad stories. Words Fail to describe the devastation that that city endured, to this day, the community has not recovered.You have no idea how many people did not give up thier guns - you have no idea how many kept them stashed - I would be willing to bet you just because you cant see thier firearms that they were darmed. I imagine in a situation like that the last thing you want to do is attract attention.
The damaged cause by katrrina is not in question- the fact that everyone turned their pistols / firearms in is. I knwo some did but bet an awful lot did not.