Your leaders tried to exterminate several racial groups, and started the most destructive war in human history. Our leaders were in charge of a handful of soldiers who made jailed insurgents form naked human pyramids, not unlike pledges in a particularly nasty fraternity.
That means just because we got to try and convict your leaders, you dont necessarily get to do the same to ours.
I don't like Rumsfeld. In fact, there isn't another politician that I dislike more. We should investigate his staggering level of incompetence, and he should be held accountable for his authorizations of torture or any other wrongdoings.
However, I'd prefer it if interpreting American laws was left to American judges, thank you very much. Here in the USA, we are perfectly capable of monitoring and punishing leaders who overstep their bounds. And unlike the Germans, we always have been.
Darfur is getting worse. It would be nice if Germans spent their time going after real war criminals (hint: they are hiding in Khartoum) instead of making political points. It isn't America's job to police the entire world, and we're busy right now. It makes me angry to see the Europeans doing absolutely nothing to solve the problems that they created.