Bay Area Rapid Transit (BART) police officers arrest a man during a protest at the Civic Center train station in San Francisco, Monday, Aug. 22, 2011. The small demonstration involving about two dozen protesters prompted BART officials to close the Civic Center station at 5:30 p.m. Demonstrators and computer hackers have been targeting BART for shutting down wireless service at Civic Center on Aug, 11 to quell a brewing protest over a shooting by transit police. (AP Photo/Jeff Chiu) Photo: Jeff Chiu, AP