Steptoe partner and former Department of Homeland Security Assistant Secretary for Policy Stewart Baker authored an op-ed for The Hollywood Reporter titled “National Security Expert: Why North Korea Should Be Held Responsible for Sony Hack.”   Mr. Baker’s editorial makes the case that North Korea was behind the cyberattack on Sony Pictures and argues that the United States needs to hold it responsible.  He also suggests that someone should drop 1 million DVDs of The Interviewon Pyongyang from balloons, an idea that a South Korean activist now reportedly intends to implement.  Life imitating “art,” as it were.