Photos: When 'Anonymous' attacks

Online activist confederation "Anonymous" conducted a series of protests at major Church of Scientology centers worldwide. Among the largest was the protest at the Church of Scientology New York. Between 200 and 300 people marched to the organization's building wearing masks, and carrying signs. "Anonymous" is a loose loose-knit organization of readers and posters on message boards, such as 4chan.org, who have come together to protest the Church of Scientology's policies.