Gideon Rose is managing editor of Foreign Affairs magazine and an expert on terrorism, among other issues, in the Middle East and South Asia. He is based in New York City.

Michael Radu is co-chairman of the Center on Terrorism, Counter-Terrorism and Homeland Security at the Foreign Policy Research Institute in Philadelphia. He has studied terrorist groups around the world and is an expert on terrorism and extremism in Turkey.

Sandra Mackey is a freelance journalist who has written widely on Islamic extremism, especially in Iraq and Lebanon. She is the author several books on Islam and politics in the Middle East including Mirror of the Arab World: Lebanon in Conflict (2008). She lives in Atlanta, Ga.

Bruce Hoffman is a professor in the security studies program at Georgetown University in Washington, D.C. He teaches graduate courses in terrorism and counterterrorism and insurgency and counterinsurgency, as well as other international security subjects.

The Saban Center for Middle East Policy is based at the Brookings Institution, a nonprofit organization that focuses on U.S. foreign policy through funding independent research, publishing and events. It is based in Washington, D.C.

The Institute for Social Policy and Understanding is an independent nonprofit think tank committed to research and analysis of U.S. domestic and foreign policies, with an emphasis on issues related to the Muslim community in the United States. Katherine Coplen is director of communications.

The Center for Strategic and International Studies seeks to influence and develop international policy. It has a Middle East Program which focuses on U.S. foreign policy in the region. Its Turkey Project focuses on U.S. policy and Turkish politics. The South Asia Program focuses on the politics and strategic developments in India, Pakistan, Bangladesh, Sri Lanka, Nepal and Afghanistan. H. Andrew Schwartz […]

The Catholic Peacebuilding Network connects practitioners and scholars to strengthen Catholic peacebuilding in areas of conflict.

The Alliance for Peacebuilding coalition in Washington, D.C., includes many faith-based members.