The social media site Twitter is fighting a court order demanding it release the account details and message history of an Occupy Wall Street protester. A New York state court has called on Twitter to hand over tweets written by Malcolm Harris, a protester who was arrested with hundreds of others during the Occupy march across the Brooklyn Bridge on October 1. But Twitter has filed a motion to quash the order, saying it constitutes an undue burden. In a statement, the American Civil Liberties Union praised Twitter’s move, saying: “If Internet users cannot protect their own constitutional rights, the only hope is that Internet companies do so.”