China has accused the U.S. of stealing secrets and infiltrating the country's national time centre, warning that serious breaches could have disrupted communication networks, financial systems, the power supply and the international standard time. The U.S. National Security Agency has been carrying out a cyberattack operation on the National Time Service Center over an extended period of time, China's State Security Ministry said in a statement on its WeChat account on Sunday.US Stock Market TodayBack to W ...