Terry Gross

President of the University of Cape Town Mamphela Ramphele. During the 1970s she was a leader in the struggle against Apartheid, and was a colleague of Steven Biko. Later she became his lover. Biko was murdered while in detention and Ramphele was pregnant with his child. Ramphele is also a medical doctor and anthropologist. Her new memoir is "Across Boundaries: The Journey of a South African Woman Leader" (The Feminist Press)

Saxophonist Ravi Coltrane. He's the son of the legendary jazz musician John Coltrane, and was two years old when his father passed away. He's just completed his first album as band leader, "Moving Pictures" (RCA Victor)

Israel's chief negotiator with the PLO from 1993-1996, Uri Savir. He was the first Israeli official to negotiate secretly with a senior representative of the PLO. He participated in the historic peace process in Oslo. He's written a new memoir, "The Process: 1,100 Days That Changed the Middle East" (Random House).