Pentagon's Cyber Command seeks authority to expand its battlefield

The Pentagon's new Cyber Command is seeking authority to carry out computer network attacks around the globe to protect US interests, drawing objections from administration lawyers uncertain about the legality of offensive operations.

Cyber Command's chief, Gen. Keith B. Alexander, who also heads the National Security Agency, wants sufficient maneuvering room for his new command to mount what he has called "the full spectrum" of operations in cyberspace. Offensive actions could include shutting down part of an opponent's computer network to preempt a cyber-attack against a U.S. target or changing a line of code in an adversary's computer to render malicious software harmless. They are operations that destroy, disrupt or degrade targeted computers or networks. But current and former officials say that senior policymakers and administration lawyers want to limit the military's offensive computer operations to war zones such as Afghanistan, in part because the CIA argues that covert operations outside the battle zone are its responsibility and the State Department is concerned about diplomatic backlash.