Richard A. Clarke

Richard A. Clarke is one of the world's leading experts on security, cyberspace, and terrorism. He served in the U.S. government for thirty years, including as White House counterterrorism coordinator under Presidents Bill Clinton and George W. Bush, and became the first White House official placed in charge of U.S. cybersecurity policy. He is the author of eight books (four works of nonfiction and four novels), including the number-one national bestseller Against All Enemies: Inside America's War on Terror.