As we rebuild New Orleans, I think we ought to look into hiring a few Dutch engineers. They know a few things about keeping water out of populated areas that are below sea level. What I particularly admire about the Delta Works is the way they have been built so as to minimize damaze to salt water estuaries. It is possible to control flooding without totally mucking up the natural ebb and flow of water and silt across the land the way the Army Corps of Engineers has done on the Mississippi.