The Center for Strategic and International Studies and the Howard Gilman Foundation co-sponsor the first installment of the Cohen-Nunn Dialogues focusing on America's role in the world. The panel is moderated by former U.S. Secretary of Defense William Cohen and former U.S. Senator Sam Nunn.Speakers include Christiane Amanpour, Chief International Correspondent at CNN; Andrew Kohut, President of Pew Research Center; and General Anthony Zinni, retired four-star general in the United States Marine Corps and a former Commander in Chief of U.S. Central Command.