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I suspect Glenn's had a lot on his plate in terms of deletions the last week or so.
Anyways, there are a number of reasons that the international community has been slow/unable to act with regard to Bush and friends, and if I was a better student in International Law last semester I could do a better job of this, but here goes:
ICJ: The International Court of Justice International, a tribunal that hears cases between sovereign states only. An optional protocol allows for compulsory jurisdiction of claims between states if other methods of resolution fail. The U.S. pulled out of the optional protocol subsequent to that Nicaragua unpleasantness. In any event, decisions of the ICJ don't really have much effect, especially in domestic law (see the Medellin case from last year), and the enforcement of ICJ decisions is through the UN Security Council. The US is a permanent member of the Security Council and can thus veto any resolution calling on the US to make amends in any way were we to lose a case in front of the ICJ, in the same way the US has repeatedly vetoed resolutions condemning Israel.
The ICC: International Criminal Court hears war crimes cases, among a few others. It is designed to punish the perpetrators of serious international crimes, and many here and in Europe certainly think that way of Bush and friends. The US has not only refused to sign on to it, Bush has authorized the military to INVADE the Hague to retrieve any US citizen brought before the court.
Immunity: In international law, governmental officials are usually immune from process, at least with regard to acts that did not occur in the country seeking to bring them to justice. I'm a bit fuzzy on this point. I'm pretty sure you can get a good background by googling "The arrest warrant case."
International law is still evolving. In another hundred years or so it might be a good tool for keeping world leaders honest. I'm not that optimistic.