Richard A. Clarke began his federal service in 1973 in the Office of the Secretary of Defense. In the Reagan administration, he was the Deputy Assistant Secretary of State for Intelligence. In the first Bush administration, he was the Assistant Secretary of State for Politico- Military Affairs and then a member of the National Security Council staff. He served for eight years as a special assistant to President Clinton and was National Coordinator for Security and Counterterrorism for both President Clinton and President George W. Bush. From 2001 to 2003, he was the Special Adviser to the President for Cyberspace Security, and chairman of the President's Critical Infrastructure Protection Board. He is now chairman of Good Harbor Consulting. Besides Against All Enemies, he is most recently the author of the much-discussed "Ten Years Later," a future history of the war on terror published in The Atlantic Monthly.