Irrelevant if the wetlands are restored along with strong levees.
the dutch have made it work, can the U.S not do the same? or are you admitting the U.S is inferior to the Dutch?
Isn't most of the Netherlands in that situation? Don't know much about them.
Are there parts of New Orleans that are above sea level? If so, how about rebuilding there? Why put yourselves in a situation of having to rebuild all over again? If something happened to New Orleans this summer, there would be no money to do this, anyway.