The biggest problem during Katrina was the out of control cops who were confiscating hundreds of weapons, looting businesses and homes, locking up citizens protecting their property, and shooting at unarmed citizens. I fear an army of well-armed cops more than a disorganized gang of wandering thieves.
“You people certainly know how to handle a disaster... where I just came from... the people that we were trying to help were shooting at us”. All I had done was offer him and this Lt. (female) that was with him a cold drink (genset here) and some hot grub.
The police here just said, “If you have to take out anyone threatening you or your family... just leave them in a ditch face down... we will get to them eventually". We were also under Martial Law at the time. EVERY real American that I dealt with during the aftermath were armed... and courteous. Neighbors looked after neighbors.