Twitter is dying, and billionaire site owner Elon Musk knows precisely where to point the finger—not at the mirror, of course, but at the Anti-Defamation League. The Jewish civil rights organization is just one of several watchdog groups that have accused Twitter of platforming anti-Semitism. On Sunday evening, Musk posted to Twitter that “To clear our platform’s name on the matter of anti-Semitism, it looks like we have no choice but to file a defamation lawsuit against the Anti-Defamation League… oh the irony!” Advertisement The Anti-Defamation League, which routinely points out racism and Anti-Semitism on online platforms, has previously been...