U.S. Accuses North Korea Of Sony Hack

The decision by the Obama adminstration to openly blame North Korea — which involved the State Department and U.S. intelligence agencies — escalated an intriguing global game of brinkmanship that included the disclosure of confidential Sony emails and business files and threats of terror attacks against U.S. movie theaters until Sony agreed to cancel the Christmas Day release of its comedy, “The Interview,” which the hackers had demanded partly over a scene depicting the assassination of North Korea’s leader.