It's possible that Clark, having been a mediocre Attorney General, wants to make a name for himself in the history books before he dies. It's also possible that he just likes to play with unwinnable cases just to see what happens. Kind of a first hand account of defending the indefensible. It would make a good book in any event.

Or, and more likely, Saddam could be this guy's Mt. Everest. He's defending Saddam just because he's there.