What would you think of a man who supported the greatest mass-murder machine in human history? A man who was proud to stand by a genocidal dictator who nearly destroyed Europe; a man proud to call himself a Nazi? Would you find him sickening, evil? Maybe not if he was John Rabe. A high-ranking Nazi, Rabe was an ardent supporter of Adolf Hitler. But he was also something else. He was perhaps the greatest humanitarian you’ve never heard of.