The Chronicle reporters who are refusing to testify about their sources in the Balco investigation say a judge’s decision to jail Barry Bonds’ trainer for refusing to testify hasn’t increased their concerns about going to jail. Lance Williams (left) and Mark Fainaru-Wada, who first broke the stories about Bonds’ steroids use through grand jury transcripts, told Editor & Publisher Magazine that the believe they have a better defense to avoid testifying than trainer Greg Anderson. The difference is that the reporters are invoking the First Amendment. Still, Fainaru-Wada admitted he thought it was “pretty amazing” that the judge would jail Anderson. It showed the judge was serious, he said. An Aug. 4 hearing as been set in U.S. District Court in San Francisco where a judge will decide if the two reporters should go to jail.