I saw a Discovery Channel special on the NOLA levee's back in 2000 and they showed what would happen to the levee's in the event of a CAT 5, and with their computer animation created at Louisiana State University computers, the simulated disaster was spot on to what had actually happened in the wake of Katrina.
They have now admitted that their damn levees wouldn't hold a CAT 3 and they didn't. Billions were funded to them. They spent it on other thangs and lined their own pockets.
And they got hit with the back end of a barely Category 3.