Philip Mudd spent 25 years in the federal government working on national security issues, especially counterterrorism, at the CIA, FBI and the White House. He served as the Deputy Director of the Counterterrorist Center at the CIA and the senior intelligence adviser at the FBI. He left government in 2010 and now speaks, writes, consults and teaches. His most recent book, The HEAD Game, a guide to critical thinking and problem solving, was published in 2015. He appears frequently on CNN as the network’s counterterrorism analyst and he speaks to universities, law enforcement officials, and companies about issues such as decision-making and national security.