Richard A. Clarke
"Cyberwar"-- or cyber-anything, for that matter-- has always carried a whiff of science fiction about it. But it's not fiction, and - as terrorism expert Richard A. Clarke warns us in The FIfth Domain--multiple cyberwars are underway already. The battlefronts range from simple identity theft to the disruption of nuclear programs and medical care. Clarke has served as a key advisor on intelligence and counterterrorism to three US presidents.