China's People's Liberation Army has a specialized unit dedicated to launching cyberattacks, and its main target is the United States.
U.S. intelligence agencies warn that China operates on a scale so sophisticated it could bring down the entire American electrical grid. Director of National Intelligence James Clapper warned the Senate Armed Services Committee in September that the Chinese have the ability to launch "a massive Armageddon-like attack against our infrastructure."
Kevin Freeman on "For the Record"