I just heard on the radio there is two feet of water from hurricane Rita in parts of New Orleans as water over-topped one of the levees.

They really need to give it up.  Let it be an archaeological site for future generations.  New Orleans might recover from this battle and the next, but the war will be lost along with resources that would be better invested in a new city.

See also:

Another shot at New Orleans
Now do you believe me?
New Orleans was most vulnerable major city to hurricanes
More levee info