In Copenhagen, the first of the colleagues that I met, coming out of Germany to escape, was Otto Frisch. He was working in nuclear physics and he had an important part in getting the atomic bomb project started later on. Then, a little later, called James Franck, a wonderful man, a hero to everybody that knew him, I think. And he had been a hero in World War I. He had an Iron Cross. He had gone in no-man's land to bring back wounded. And, as I understand it, Hitler had said he could stay in Germany, Jewish though he was, because of his World War record, but he didn't want to stay. I remember in a long walk and talk he and I had one day, his telling me it would be fifty years before Germany would get over Hitler.