PBS Newshour: Dick Cheney reflects on how medical care kept him active despite heart disease

From his first heart attack at age 37 to a full transplant in 2012, Dick Cheney says he's proud to have lived an active life despite battling heart disease. Gwen Ifill sits down with the former vice president, author of "Heart: An American Medical Odyssey," to discuss how his health concerns affected his time in office.