Why are the plays of William Shakespeare still so popular four hundred years after the Bard's death? Correspondent Mo Rocca visits the newly-renovated Folger Shakespeare Library, in Washington, D.C., home to the world's largest collection of Shakespeare's published First Folios; and talks with New York Times columnist and Shakespeare aficionado Maureen Dowd about the playwright's enduring appeal.Rocca also talks with actor Patrick Page, who travels the country with his one-man show of Shakespearean villains, "All the Devils Are Here"; and "This American Life" host Ira Glass, whose 2014 tweet declaring that "Shakespeare sucks" let slip the dogs of war....