On May 3, 1945, the Cap Arcona was bombed, turning the floating concentration camp into a fiery tomb. In a tragic error, British Typhoon bombers — part of the Allied forces moving in to finish off the Nazis — had attacked the boat. Bill Niven is a British historian and scholar of the Holocaust. He told 60 Minutes the mistaken attack on the Cap Arcona and a smaller ship was one of the most wrenching tragedies of the war. "The prisoners knew that the war was nearing its end. I think a lot of them probably had hopes that they would survive, and that gave them the strength and the courage to hang on," said Niven. #WWII #history