Zbigniew Brzezinski is a counselor and trustee at the centre for Strategic and International Studies and a professor of American foreign policy at the School of Advanced International Studies at Johns Hopkins University. His many books include the New York Times bestseller Second Chance. He lives in Washington, D.C. Brent Scowcroft is president of The Scowcroft Group, an international business and financial advisory firm. He served as National Security Advisor to both President Ford and President George H.W. Bush and the Military Assistant to President Nixon. He is the coauthor, with former President George H.W. Bush, of A World Transformed. He lives in Washington, D.C.