Haunting 'what-if' in novel on the JFK assassination
Video duration: 6:14
What if the glass bubble top on the car in which President John F. Kennedy was riding in Dallas had not been removed by a Secret Service agent? The NewsHour's own Jim Lehrer explores that idea in "Top Down: A Novel of the Kennedy Assassination." Jim joins Judy Woodruff to discuss his personal experience that inspired the book.