People are trying to fathom the Katrina aftermath in terms a little more sophisticated than political blame. The experinece of Galveston and Charleston might offer some insight. Some argue that one part of New Oeleans will come back -- the tourism mecca -- but not the commercial center. Katrina has lessons to teach to those paying attention. One of those lessons is that all of life is about risk and compromise. And, finally, it's time to get on with it.