Career Foreign Service officer and former ambassador to Nigeria. Political counselor at the U.S. Embassy in Pretoria during South Africa's first non-racial elections. His book Nigeria: Dancing on the Brink was published by Rowman & Littlefield in November 2010. The second edition is coming soon. He writes the blog "Africa in Transition" and edits the Nigeria Security Tracker.

Author of the book Paradise Beneath Her Feet: How Women are Transforming the Middle East (Random House, 2010). Contributing author to Restoring the Balance: A Middle East Strategy for the Next President (Brookings Institution Press, 2008). Coauthor of Strategic Foreign Assistance: Civil Society in International Security (Hoover Institution Press, 2006).

Distinguished public service professor at Carnegie Mellon University. Former assistant secretary of state for African affairs, U.S. ambassador to South Africa, and special assistant to the president and senior director for African affairs in the George W. Bush administration.

Author of two bestsellers (The Coming Plague: Newly Emerging Diseases in a World Out of Balance and Betrayal of Trust: The Collapse of Global Public Health). Recently published I Heard the Sirens Scream: How Americans Responded to the 9/11 and Anthrax Attacks. Presently writing a book examining the global impact of infectious disease.

Former senior director for democracy and human rights, senior director for the Near East, and deputy national security adviser handling Middle East affairs in the George W. Bush administration. Former assistant secretary of state for UN affairs, human rights, and Latin America in the Reagan administration.

Author of the book Paradise Beneath Her Feet: How Women are Transforming the Middle East (Random House, 2010). Contributing author to Restoring the Balance: A Middle East Strategy for the Next President (Brookings Institution Press, 2008). Coauthor of Strategic Foreign Assistance: Civil Society in International Security (Hoover Institution Press, 2006).

Author of The Struggle for Egypt: From Nasser to Tahrir Square (Oxford University Press, 2011) and Ruling But Not Governing: The Military and Political Development in Egypt, Algeria, and Turkey (Johns Hopkins University Press, 2007). Directed the Council-sponsored Independent Task Force on U.S. policy toward reform in the Arab world.

Former head, Office of the Quartet Representative, Tony Blair, in Jerusalem. Former State Department and National Security Council official with over twenty years government experience specializing in the Middle East. Currently researching and writing on the Israeli-Palestinian conflict, the Arab uprisings, and U.S. interests in the Middle East. Advises Quartet Representative Tony Blair.

Author of The Guardians of the Revolution: Iran's Approach to the World (Oxford University Press, May 2009). Served as senior adviser to the special adviser for the Gulf and Southwest Asia at the U.S. Department of State.

Former senior director for democracy and human rights, senior director for the Near East, and deputy national security adviser handling Middle East affairs in the George W. Bush administration. Former assistant secretary of state for UN affairs, human rights, and Latin America in the Reagan administration.

Author of The Struggle for Egypt: From Nasser to Tahrir Square (Oxford University Press, 2011) and Ruling But Not Governing: The Military and Political Development in Egypt, Algeria, and Turkey (Johns Hopkins University Press, 2007). Directed the Council-sponsored Independent Task Force on U.S. policy toward reform in the Arab world.

Former senior director for democracy and human rights, senior director for the Near East, and deputy national security adviser handling Middle East affairs in the George W. Bush administration. Former assistant secretary of state for UN affairs, human rights, and Latin America in the Reagan administration.

Former senior director for democracy and human rights, senior director for the Near East, and deputy national security adviser handling Middle East affairs in the George W. Bush administration. Former assistant secretary of state for UN affairs, human rights, and Latin America in the Reagan administration.

Former senior director for democracy and human rights, senior director for the Near East, and deputy national security adviser handling Middle East affairs in the George W. Bush administration. Former assistant secretary of state for UN affairs, human rights, and Latin America in the Reagan administration.

Distinguished public service professor at Carnegie Mellon University. Former assistant secretary of state for African affairs, U.S. ambassador to South Africa, and special assistant to the president and senior director for African affairs in the George W. Bush administration.

Author of two bestsellers (The Coming Plague: Newly Emerging Diseases in a World Out of Balance and Betrayal of Trust: The Collapse of Global Public Health). Recently published I Heard the Sirens Scream: How Americans Responded to the 9/11 and Anthrax Attacks. Presently writing a book examining the global impact of infectious disease.

Economist and recipient of the Nobel Prize in economics in 2001. Author of The Next Convergence, released in May 2011. Chairman of the Commission on Growth and Development.

Author of the book Paradise Beneath Her Feet: How Women are Transforming the Middle East (Random House, 2010). Contributing author to Restoring the Balance: A Middle East Strategy for the Next President (Brookings Institution Press, 2008). Coauthor of Strategic Foreign Assistance: Civil Society in International Security (Hoover Institution Press, 2006).

Distinguished public service professor at Carnegie Mellon University. Former assistant secretary of state for African affairs, U.S. ambassador to South Africa, and special assistant to the president and senior director for African affairs in the George W. Bush administration.

Author of two bestsellers (The Coming Plague: Newly Emerging Diseases in a World Out of Balance and Betrayal of Trust: The Collapse of Global Public Health). Recently published I Heard the Sirens Scream: How Americans Responded to the 9/11 and Anthrax Attacks. Presently writing a book examining the global impact of infectious disease.