Intelligence Squared US

was a CIA case officer in the Directorate of Operations from 1976 to 1997, where he served in Middle Eastern countries, including Iraq and Lebanon. He is the author of two New York Times bestsellers: Sleeping with the Devil, about the Saudi royal family and its relationship with the United States; and See No Evil.

is a syndicated columnist with the Scripps Howard News Service and media fellow with the Hoover Institution on War, Revolution and Peace at Stanford University. His column, “This Opinion Just In…” reaches approximately 400 newspapers across America each week.

a former reporter for the Wall Street Journal for 15 years, is the author of Standing Alone: An American Woman's Struggle for the Soul of Islam. She is co-director of the Pearl Project, an investigation into the murder of Wall Street Journal reporter Daniel Pearl. Her activism for women's rights at her mosque in W.V. is the subject of a PBS documentary, The Mosque in Morgantown. She recently published a monograph, Milestones for a Spiritual Jihad: Toward an Islam of Grace.

is Quaid-i-Azam Professor at SIPA, Columbia University. He is also a senior advisor at the Belfer Center for Science and International Affairs at the Kennedy School of Government, Harvard University and BErnard Schwartz Fellow at Asia Society in New York. Abbas has also been a visiting fellow at the Islamic Legal Studies Program at Harvard Law School and a visiting scholar at the Harvard Law School's Program on Negotiation. Prior to his academic career, Abbas served as a government official in the administrations of Prime Minister Benazir Bhutto and President Pervez Musharraf. While in the Police Service of Pakistan in the late 1990s, he served in the North-West Frontier Province (now Khyber Pukhtunkhwa).

is the sister of Charles F. “Chic” Burlingame, III, pilot of American Airlines flight 77, which crashed into the Pentagon on September 11, 2001. She is the co-founder of 9/11 Families for a Safe and Strong America and a director of the National September 11 Memorial and Museum Foundation at the World Trade Center.

served as secretary of the U.S. Department of Homeland Security from 2005 to 2009. Before heading up the Department of Homeland Security, he served as a federal judge on the U.S. Court of Appeals for the Third Circuit, and as a federal prosecutor for more than a decade.