Frank Rich: Once Toto parts the curtain, the Wizard of Oz can never be the wizard again. He is forever Professor Marvel, blowhard and snake-oil salesman. Hurricane Katrina, which is likely to endure in the American psyche as long as L. Frank Baum's mythic tornado, has similarly unmasked George W. Bush.

http://www.truthout.org/docs_2005/091805B.shtml