Brian Weiner, chair of the politics department at the University of San Francisco and the author of Sins of the Parents: The Politics of National Apologies in the United States, talks about the power of political theory, the past and future of democracy, and the contributions of one of his mentors, Sheldon S. Wolin. And Berkeley psychology professor Lucy Jacobs tells you everything you ever wanted to know about learning and memory in squirrels, but were afraid to ask. Josh Kornbluth guest-hosts for Kris Welch.