The Department of Justice announced 17 new charges against Wikileaks co-founder Julian Assange on Thursday, including a virtually unprecedented move to charge him with publishing classified material — a move that could pose challenges to First Amendment protections. In a superseding indictment, a grand jury in Alexandria, Virginia, has accused Assange of breaking the law by inducing Army Pvt. Chelsea Manning to send him classified documents — and then publishing material that included the names of confidential sources who provided information to American diplomats. The 17 counts were tacked on to a single count accusing Assange of conspiring with Manning...