This week on Babel, Jon speaks with Karim Sadjadpour, a senior fellow at the Carnegie Endowment for International Peace where focusing on Iran and U.S. foreign policy toward the Middle East. They discuss tipping points in Iran, the future of the regime and what a post-Islamic Republic Iran might look like, and patterns in the history of authoritarian regimes. Then, Jon, Will Todman, and Caleb Harper continue the discussion about the potential foreign policy of a post-Islamic Republic Iran and its implications for regional actors and the United States.