"I've always been fascinated with the one question: Did the Germans know? … The scariest book I ever bought was Mein Kampf. I bought it because I wanted to answer that question. The answer was "Yes, they knew." I think the Germans, however, were an awful lot like we are now. We're kind of living in a denial, "no that can't really be happening, no that really—" You don't want to believe some things, but you have to. You have to actually think about them."