If you’re passionate about politics, you’ve probably wondered how some well-educated and reasonable people could have such misguided political positions. This, of course, extends to determining why some people grow up die-hard Republicans and why others end up bleeding-heart Democrats. Professor Darren Shreiber investigates these questions and more through a free course podcast offered by the University of California, San Diego. Shreiber's lectures not only consider social and cultural explanations for differing political attitudes, they also consider how the latest experiments in brain imaging and neuroscience factor into so-called political determiners. With nearly 25 hours of free material broken into ten lectures, this podcasts allows you to learn while you commute to work or exercise in the gym, all without ever having to buy a book or write an essay.