Terry Gross

Ben Kiernan is the director of the "Cambodian Genocide Project" at Yale University. Kiernan talks about why he is trying to document the mass killings and what the death of Pol Pot means for Cambodia. Kiernan wants those responsible for the crimes to face a war crimes tribunal. Kiernan is a professor of History at Yale and author of the 1996 book "The Pol Pot Regime" which has just been re-issued by Yale University Press. Pol Pot reportedly died last week of a heart attack at the age of 73. (Interview by Barbara Bogaev)

Boston Probation officer William Stewart and Judge Sydney Hanlon (woman) talk about "Operation Night Light," a program that is credited with reducing juvenile crime in South Boston. Under the program, probation officers go out with police at night looking for probation violators. Last year, President Clinton touted Boston as a national role model for what cities can achieve in reducing juvenile crime. William Stewart serves as Assistant Chief Probation officer in the Dorchester District Court in Massachusetts.

Documentary filmmaker Nicholas Clapp. His new book, "The Road to Ubar: Finding the Atlantis of The Sands" (Houghton Mifflin) is about his search for the lost Arabian city of Ubar. Described in the Koran as "the many-columned city" Ubar, was said to have been destroyed by God for the sins of its people. Using satellite maps to help locate it, Clapp organized two expeditions to Arabia to find Ubar. And he found it in 1992. (Interview by Barbara Bogaev)