David Nasaw

Historian David Nasaw tells the story of more than a million people stranded in defeated Nazi Germany after World War II. Some felt they couldn't return to their home countries under Soviet control. Others were Jewish survivors who had no homes to return to. Nasaw's book is 'The Last Million.'

In a new book, biographer David Nasaw profiles the father of Robert, John and Teddy, and unpacks the elder Kennedy's influence on his children. "He told them over and over again, 'I'm making all this money so you don't have to make money, so that you can go into public service,'" Nasaw says.