How Robert Mueller Works a Case

I worked for Bob Mueller for 12 years while he was the FBI director, running counterintelligence, espionage and cybercrime investigations. What I saw recently was a classic law-enforcement response to a suspected Russian intelligence or political-influence operation. And it was classic Bob Mueller. Already, he appears to have uncovered details of a far-reaching Russian political-influence campaign. Russian spy services use two main methods to run agents.