Panelists Bernard Haykel, Director of the Institute for Transregional Studies at Princeton, and Karim Sadjapour, Senior Associate of the Middle East Program at the Carnegie Endowment for International Peace, joined moderator Meghan O'Sullivan, Professor of the Practice of International Affairs at the Harvard Kennedy School for a discussion of the persisting tensions between Iran and Saudi Arabia. The panelists discussed geopolitical and sectarian explanations for the rivalry, discussed its global implications, and questioned the potential for reconciliation between the two nations.