Tonight the students are watching a John Stossel video on the War on (Some) Drugs (Users). We've used various Stossel shows over the years and I think they work really well. Stossel is great at showing how silly the politically powerful are, and through his "playing dumb" technique, allowing his libertarian interview subjects to get ideas across in ways that make them seem as obvious and sane as they really are.
I think it's also a pleasure for these students to see a TV show that presents ideas they agree with in a media-savvy and persuasive way. For my money, Stossel is perhaps the most influential libertarian around these days. We need more like him.