Actually, the swamps etc. act as a buffer and help minimize flooding. Training the mississippi between manmade barriers only raises the potential for worse flooding in bigger storm events.
Horse Sh**. You obviously don't know your history. The mississippi had horendous floods before the levee system was put in place, ditto California's river systems that used to flood so bad people could row a boat(cross country)between Sacramento and Stockton in the winter. Marshes and swamps are more important than people? I thought that this was a conservative forum? Where are they?