In 2011, convicted bank robber Anthony Brown was in LA County jail awaiting transfer to federal prison. Sheriff's deputies discovered he had a contraband cell phone with a record of calls to the FBI. The feds were investigating charges of jail-house brutality. The Sheriff's Department then launched Operation Pandora's Box. Celeste Fremon, who blogs at Witness LA, has published new details of "elaborate lengths to hide a federal informant from the FBI."