The recent Hamdan decision by SCOTUS said that Common Article 3 of the Geneva Convention applies to the conflict with Al Qaeda. This ruling might not sound too consequential but it means high-ranking Bush administration officials could potentially be subject to prosecution under the federal War Crimes Act.
The one thing that scares the crap out of George Bush and this administration is the courts. They can manipulate the politics of the country and bend the Congress to their will but the courts aren't so easy to scare politically. That's why the Right is always whining about "activist judges" which is code for judges that disagree with thier position.
Make some noise people! If there is someone with the resources and the balls to take GW Bush to court as a war criminal (which technically he is!) it would be justice finally being served by the one branch of Government they haven't already compromised!!
Push this issue whenever you can and if it gets even a little traction it could open a can of worms for these guys they'll never survive.