U.S. blames North Korea for Sony cyber attack

By Aruna Viswanatha and Steve Holland WASHINGTON (Reuters) - The U.S. government on Friday blamed North Korea for a devastating cyber attack against Sony Pictures, calling it an unacceptable act of intimidation and vowing to impose "costs and consequences" on those responsible. It was the first time the United States has directly accused another country of a cyber attack of this nature on American soil. ...