They have accessed the office of the Secretary of Defense, the control systems for U.S. electric power grids, and the plans to protect America's latest fighter aircraft. They can shut down our most vital systems, from transportation to finance, using such weapons as logic bombs, botnets, and trapdoo[...]

Richard A. Clarke warned America once before about the havoc terrorism would wreak on our national security -- and he was right. Now he warns us of another threat, silent but equally dangerous. "Cyber War" is a powerful book about technology, government, and military strategy; about criminals, spies[...]