One of the things I didn't know is that the New Orleans Police Department is apparently one of the most corrupt in the States (something mentioned in several places I've been to now) and there are quite a few reports of police looting.
Some of this can probably be put down to damage control (clearence of guns stores for instance) but when it comes to them looting grocery stores and/or hi-fi stores one has to wonder if it's for other more personal reasons.
Personally I'd leave the supermarkets for other locals to scavenge as much food as possible from, or set up a controlled allotment of food. I'd also be more concerned about finding survivors and helping get them out rather than making sure the Hi-Fi stores stock was safe. They have insurence for that (of would do if the insurence companies pay-up - if not there will no doubt be disaster relief funds willing to help businesses and home-owners in the area).
I'd love to think that people would pull together in a time like this. Most are which is great, but we are also seeing many holing up together in tactics and mindsets akin to 'Survivalists' which is kind of scarey. I think it's only a matter of time until people start shooting each other over there. Which is especially stupid when you consider that help is out there.
Edit - I have a slight feeling that his political views may be on the righter side of the 'America is great' spectrum though....