ROGER COHEN is a columnist for The New York Times, where he has worked since 1990: as a correspondent in Paris and Berlin, and as bureau chief in the Balkans covering the Bosnian war (for which he received an Overseas Press Club prize). He was named a columnist in 2009. He became foreign editor on 9/11, overseeing Pulitzer Prize-winning coverage in the aftermath of the attack. His columns appear twice a week, on Tuesdays and Fridays. His previous books include Soldiers and Slaves and Hearts Grown Brutal. He lives in London.