President Kennedy records a personal memo about the death of South Vietnam President Ngo Dinh Diem, only to be interrupted by his son, John F. Kennedy, Jr. The light tone he strikes with his son stands in stark contrast to his words about the overthrow of Diem and his brother, which clearly upset him. This conversation is a part of the new collection "Listening In: The Secret White House Recordings of John F. Kennedy," available in stores now: bit.ly/RcGzgP