It's been some 400 years since Shakespeare was writing - but for some, questions linger. How did an uneducated actor write some of the greatest works in the English language? There have been plenty of doubters over the years - among them Walt Whitman and Sigmund Freud. Now US Supreme Court Justice John Paul Stevens joins them. He believes the Earl of Oxford was the real Shakespeare. Wednesday, we're talking about the "authorship question," and whether there's any credence to the arguments.