Benedict Arnold. He is known as America's great traitor. Though there have been numerous traitors in the history of the US, none stands out like Arnold. But is there more than meets the eye to this disgraced general of the American Revolutionary War? Dr. Stephen Brumwell, author of "Turncoat: Benedict Arnold and the Crisis of American Liberty" and the preeminent scholar on Arnold, joins the show to shed light on a dark figure of America's past.