Yet another surprise revelation suggests strongly that the FBI’s probe of Hillary Clinton’s e-mail mess was anything but a by-the-book investigation. House Oversight Committee Chairman Jason Chaffetz (R-Utah) said he learned only Friday that the Justice Department gave immunity deals to Clinton’s former chief of staff, Cheryl Mills, and two other aides. That brings to five the number of Clintonistas who got a pass in exchange for testimony and/or information.