Professor Joseph S. Nye, Jr. is former Dean of Harvard’s Kennedy School of Government. He has served as Assistant Secretary of Defense for International Security Affairs, Chair of the National Intelligence Council, and a Deputy Under Secretary of State. He is a fellow of the American Academy of Arts and Sciences, the British Academy, and the American Academy of Diplomacy. In a recent survey of international relations scholars, he was ranked as the most influential scholar on American foreign policy, and in 2011, Foreign Policy named him one of the top 100 Global Thinkers. In this exclusive interview, I spoke to Prof. Nye on the changing dynamics of power in our world.