Jared Diamond, the Pulitzer Prize-winning author of Guns, Germs & Steel (and Collapse: How Societies Choose to Fail or Succeed), offers some timely thoughts on why Haiti, once a fairly prosperous country, has sunk into enduring poverty -- a condition not comparatively shared by its neighbor on the same island, the Dominican Republic. According to Diamond, Haiti's environmental conditions offer a partial explanation. But you will also find clues in the country's language, and in the legacy of slavery that has shaped Haiti's economic relationship with Europe and the US. This interview -- quite a good one -- aired this morning in San Francisco. You can listen to it below, or access it via MP3, iTunes or RSS Feed.