It is just plain stupid to rebuild a town that's under sea level to begin with. That's throwing money away.
It's not IF you make it safe enough....
In fact, 40% of my country would be flooded without dikes etc.because these parts are below sea level:

And that's without storms, let alone hurricanes.
Especialy interesting if you see where the most people live here:

(Yes, we live in the deepest red area).
Of course, we had to learn our lesson before acting as well. In 1953 a large part of the south-west was flooded during a storm and cost 1800 people their lives. After that they started the Delta-works to make our _LOW_ country safe (or as safe as possible ?). To give an idea about how much time it took to complete: they just finished a couple of years ago....
I know Dutch engineers were helping in New Orleans with plans to make it safer, but you can't do it in 3 years I guess.
For all people over there I just hope Gustav will be less terrible than it's predicted now. Our thoughts are with all people in the world that got hit by it....
Special thoughts for Bob and his family:
http://homearcade.org/BBBB/index.html