Not only US, Russia and many powerful countries will never allow ICC to deal with their citizens or friends. So this imperial court. It great idea to stop Rwanda or Kenya genocide from happening. But if it was UN body where everyone subscribed to - then it would have much more teeth, credibility and it won't appear like a court for Africans.
UN has it's tribunal. ICC is not part of it. All these tribunals need to be collapse and ICC made permanent UN COURT for dealing with international crimes.