If only the Germans went after their own war criminals with the vigor that they pursued the Ukrainian, Demjanjuk.
German citizens are exempted from prosecution for NAZI collaboration in Germany. If Demjanjuk had become a German citizen instead of an American, he could not have been put on trial. The same exemption applies for Israeli citizens in Israel.
They’ve gone after their own war criminals with a lot more vigor then, say, the Russians have over Katyn. But then again, they were under a lot more pressure from us than the Russians ever have been.