Following the attacks of September 11, 2001, the National Security Agency stepped up its efforts to collect intelligence domestically by filtering millions of phone conversations and e-mail messages. In his new book, The Shadow Factory, journalist James Bamford reveals that the ultra-secret agency has half a million people on its watch lists.
Patrick Radden Keefe is the author of Chatter: Dispatches from the Secret World of Global Eavesdropping. For his book, Keefe researched the possibility that the United States has a planet-spanning surveillance network, known as Echelon. Keefe is a third-year student at Yale Law School and was a Marshall scholar and a 2003 fellow at the Dorothy and Lewis B. Cullman Center for Scholars and Writers at the New York Public Library.