Summary: Despite what you may have heard, Barack Obama, Nancy Pelosi and other top Democrats aren't socialists. And the top Republicans in Washington aren't free-market libertarians. But given how freely everybody's throwing those terms around these days, we're wading in to get a deeper understanding of what they really mean. On today's Planet Money, we talk to an actual socialist -- Richard Wolff, professor emeritus at the University of Massachusetts -- about socialism. Coming next week: Libertarianism. Music: Billy Bragg's "The Red Flag."
