Former White House Counsel John W. Dean, one of the last major surviving figures of Watergate, reveals what President Nixon knew and when he knew it, and what happened during that mysterious 18 1/2 minute gap. When he was growing up, Brando Skyhorse was told that his father was an American Indian—but as he reveals in a new memoir, the situation is a lot more complicated. Tracy Droz Tragos discusses her award-winning documentary “Rich Hill,” about boys growing up in a struggling rural town in Missouri. She’s joined by one of the teenagers she profiles in the film. Plus, a look into the philosophical ideas that inspired America’s revolutionaries--from Thomas Jefferson to Thomas Young, who started the Boston Tea Party.