Good griefs! And what would be their mission? These troops are not trained for this kind of stuff. They should attack the water?
The same people who think we should nuke China if they attack Taiwan, nuke Mecca in the event of another terror attack, and nuke hurricanes before they come ashore probably think we should nuke the water, too. Those nuclear warheads really are handy little all-purpose problem-solvers, aren't they? ;)
Basically, you'll need to establish a firm hand NOW and going forward as water recedes and you establish order. However, no one has considered the probability of another Gulf tropical system paying the northern Gulf area a visit come late September. That's what really has people concerned I'll bet.
They need to get everyone save official business people out of NO asap.
Be Seeing You,
Chris