Nathaniel Philbrick, the best-selling author of In the Heart of the Sea, Mayflower, and Bunker Hill, talks to Daniel Ford about how he caught the history bug and what inspired his new book Valiant Ambition: George Washington, Benedict Arnold, and the Fate of the American Revolution.
To learn more about Nathanial Philbrick, visit his official website, like his Facebook page, or follow him on Twitter @natphilbrick.