Watch | War or Peace: Which Way is the West Asia Crisis Heading?

Are the peace talks in West Asia genuinely moving towards a breakthrough, or are we witnessing another cycle of optimism that may come to nothing? What do we know about the contours of a possible agreement between Iran and the United States? Who stands to gain the most from these talks? And what would a deal mean for the United States, Israel, the Gulf states, and Lebanon and Iran? Senior journalist Karan Thapar discusses these questions with Vali Nasr, the Majid Khaddouri Professor of International Affairs and Middle East Studies at Johns Hopkins University and author of Iran's Grand Strategy: A Political History.