"Look, I respect the vice president. He and I had strong disagreements as to whether we should torture people or not. I don't think we should have," - John McCain, another person who believes Dick Cheney is a war criminal. Which, on simple empirical grounds, is indisputable.
Dick Cheney learned this lesson a long time ago. If no one plans on doing anything about it, why not parade around bragging about committing war crimes?