With Prince Turki bin Faisal Al Saud, former director general of Al Mukhabarat Al A’amah, Saudi Arabia’s intelligence agency; Yossi Alpher, former advisor to Israeli Prime Minister Ehud Barak; Shireen Hunter, former Iranian diplomat under Shah Mohammad Reza Pahlavi; and Aaron David Miller, an American analyst and negotiator who has advised six U.S. secretaries of state.