Christopher Nolan's new film Oppenheimer is about the man who's known as the father of the atomic bomb, J. Robert Oppenheimer. "Like it or not, we live in Oppenheimer's world and we always will," Nolan says.We also hear from humorist R. Eric Thomas. His new book of essays is called Congratulations, the Best Is Over! In it, Thomas explores what it's like to move back to his hometown of Baltimore as a middle-aged man. Later, Maureen Corrigan reviews the new novel by James McBride.