Abridged by Don

We must treat the potential for sabotage and destruction seriously.

James A. Lewis, director of CSIS's Technology and Public Policy Programs,

"Advanced militaries are capable of destroying U.S. computer systems. That wasn't true four years ago, but it's true now, and Cyber Command will have to deal with it." 

General Alexander, "The hard part is, we can't go out and tell everybody exactly what we are doing. We must be extremely careful."

Unauthorized users probe Defense Systems 6 million times a day.