Steve Coll is the author of the Pulitzer Prize-winning Ghost Wars and dean emeritus of the Columbia Journalism School, and from 2007 to 2013 was president of New America, a public policy institute in Washington, DC. He is an editor at The Economist in London, was a staff writer at The New Yorker for nearly two decades, and before that was a writer and editor at The Washington Post, where he received a Pulitzer Prize for explanatory journalism in 1990. He is the author of nine books, including The Bin Ladens, Private Empire, and Directorate S.