Stephen Kotkin is Rosengarten Professor of Modern and Contemporary History at Princeton University, with a joint appointment as Professor of International Affairs in the Woodrow Wilson School. He is the author of the enormously influential booksMagnetic Mountain:Stalinism as a Civilization and Armageddon Averted: The Soviet Collapse 1970—2000and contributes regularly toThe New York Times, The New Republic,and the BBC. Jan T. Gross a native of Poland, also teaches at Princeton, where he is the Norman B. Tomlinson ’16 and ’48 Professor of War and Society. He was a 2001 National Book Award nominee for his widely acclaimedNeighbors: The Destruction of the Jewish Community in Jedwabne, Poland.His most recent book,Fear:Anti-Semitism in Poland after Auschwitz, was named one of the best books of the year byThe Washington Post. From the Hardcover edition.