Terry Gross

She is professor of history at the University of Toronto and the author of the new book, Paris 1919: Six Months That Changed the World, about the Peace Conference after World War I in which delegations from around the world convened to find an alternative to war. During the six months of the conference, new boundaries were drawn up in the Middle East. Out of that conference Iraq was born, and was for a time under British control. MacMillan's book, published under the title Peacemakers in England, was the winner of the Samuel Johnson Prize.

In his new book, The Unconquerable World: Power, Nonviolence, and the Will of the People, he rethinks the relationship between war and political power. Schell writes that military power is not as effective as it once was, and that a more useful approach is one of cooperation with other nations. Schell is also the author of the 1982 classic The Fate of the Earth. He has written for The Nation, The New Yorker, Harper's Magazine and The Atlantic Monthly.

Alex Berenson is a financial investigative reporter for the New York Times. In his new book The Number: How the Drive for Quarterly Earnings Corrupted Wall Street and Corporate America, Berenson examines the corporate scandals at Worldcom, Halliburton, Computer Associates, Tyco, and others, looking at practices that were common to all.