"Jeopardy" Champ Ken Jennings

      It should come as no surprise that, as a kid, "Jeopardy!" legend Ken Jennings slept with a bulky Hammond world atlas by his pillow every night. His new book, Maphead, recounts his lifelong love affair with geography and explores why maps have always been so fascinating to him and to fellow enthusiasts everywhere. Ken joined us to talk about that, what Alex Trebek is really like and what he's doing with his winnings.

      For more information on Ken's book, visit his website.