An FBI presentation states that China has counterfeited Cisco Systems network routers and may be using the equipment to penetrate U.S. government and private sector computer networks. Federal authorities in February seized some 400 counterfeit Cisco Systems knockoffs worth $76 million. The equipment included routers, switches, gigabit interface converters and WAN interface cards. Among the purchasers of the fake equipment were the U.S. Naval Academy, U.S. Naval Air Warfare Center, U.S. Naval Undersea Warfare Center, U.S. Air Base at Spangdahelm, Germany, the Bonneville Power Administration, General Services Administration, and the defense contractor Raytheon, which makes key missile and weapons systems....