Terry Gross

He was recently abducted and expelled from Zimbabwe by government authorities. He had been The Guardian's Zimbabwe correspondent, and was the last foreign journalist allowed to file from the country.

She was the founding executive director of the Harvard University Carr Center for Human Rights Policy. She's written for U.S. News and World Report, The Atlantic Monthly, The Economist and The New Yorker. Her book, A Problem from Hell: America and the Age of Genocide, is winner of the Pulitzer Prize.

An expert on energy and the Middle East, he is a senior fellow on the Council on Foreign Relations. Previously, Ibrahim was a foreign correspondent for The New York Times, and Tehran bureau chief. He also covered energy for The Wall Street Journal. He is currently working on a book about oil and war.