BERKELEY — Hundreds of police patrolled UC Berkeley and a downtown park as counter demonstrations began Thursday after Ann Coulter canceled a speech on campus. As of 1 p.m., the university said there were two arrests. One person was arrested for carrying a knife on campus and a man was arrested for obstructing or delaying a police officer, wearing a mask and giving false identification to an officer. The International Socialist Organization called for members to meet at noon at the corner of Bancroft Way and Telegraph Avenue. That group claimed on its Facebook page that Coulter is a racist...