Freelance journalist Josh Wolf returned to federal prison today after refusing to produce the outtakes of video footage he shot at a violent San Francisco protest in July 2005. "Even though they're going to take me into custody, they can't silence me," Wolf, 24, said at a news conference outside the prison before turning himself in. "It's frightening. I don't feel I should have to return to prison. I don't think it was about me. I was probably the easiest target." Wolf, 24, had a deadline of 1 p.m. today to report to the Federal Correctional Institution in Dublin. He...