I can answer that one, Ft. Polk is 4 hours by MB away and consists of some of the best trained soldiers is the world, I've gathered that some of them have been sent to NOLA for leadership of the NG but are instructed to not interfere directly with anything. 1000 of those troops could take care of the situation in a day or two and thats a quote.

With Martial Law declared they can legally act but red stained flood waters will be bad for the news images.