Some people have speculated about the wisdom of rebuilding parts of New Orleans that are particularly vulnerable to flooding. But as this article in today's USA Today, there are thousands of levees around the country that could fail (and have failed) in places from Florida to the Mississippi Valley to California. Given the experience with Katrina, will federal funds be cut for improvement projects? Will state and local politicos ensure that the money that's allocated actually gets spent wisely? I wouldn't count on either.