There has been an unfortunate history of American administrations committing crimes against humanity and walking away with barely a slap on the wrist. The truth and reconciliation committees worked in part because there was a very real threat that those involved would have been tried and convicted and lived out the rest of their lives in prison. I don't believe that anyone in the Bush regime believes that this is a realistic option when it comes to their crimes, so prosecuting a few of the end-of-level bad guys would show the rest of the gang that you mean business.
Actually prosecuting some of the bushies and putting them behind bars for a very long time would also demonstrate to the rest of the world that there are limits to the atrocities that US administrations can wreak with impunity. I should not think that I need to stress the effect this would have on the image and soft power of the US.
- Jake If you only spend 20 minutes of the rest of your life on economics, go spend them here.