since some believe Bush is crazy enough to make the hideous mistake of attacking Iran, and I do not believe he is--mainly due to fear of impeachment and conviction--

Of course he doesn't fear impeachment or prosecution. Look at all of the crimes he and his pals have committed so far, with impunity. "Signing statements," fercrhistsake, are the biggest imposition on the agencies and the legal system around. Yet Dubya approves things then rewrites them the way he intends to follow them, regardless of the stated law.