They are going to have a hell of a time rebuilding the city.
Look at the pics in this thread
http://opszone.invisionzone.com/index.php?showtopic=4969&hl=
Theres a pic of downtown under about 5ft of water, I can't even imagine the extent of the flooding. I've seen pictures of flooded suburbs with downtown far off in the background, the entire city is under water.
I hope they rebuild it back to it's original glory because of its historical value. A good seawall like in Galveston TX, and make the levy better so it won't break again.