Who Hacked Sony?

Sony Pictures is still reeling from an attack by hackers last week. The damage so far: five new or upcoming movies have been leaked to torrent sites, along with a trove of information about the company and its employees, including the salaries of top Sony executives. Was it the North Koreans, angry about Sony’s upcoming release of “The Interview,” a comedy starring Seth Rogen and James Franco, which takes aim at North Korea’s leader? Was it an inside job? We speak to a journalist who’s been following the leaks that came out of the attack.