"You gotta have something to tow with. "
When WTC collapsed, the area was FLOODED with help and equipment of all sorts.
I think the citizens of New Orleans have to take matters into their own hands and get flotsam and jetsam towed to the area of the breech - it will snag soon after getting past the dyke where it gets real shallow real quick.
If you wait for the govt - it will take forever.
Most of that aid came by roads, which were not damaged.
Right now, there's only one functional truck-safe highway in or out of NOLA, and it's jammed with aid on wheels. But it's still just one highway. Unless you can wave a magic wand and repair the Twinspan and shore up the Causeway, that's the best they can do right now.