Mueller was a Marine lieutenant commanding a platoon in Vietnam. He achieves change through force of will. It was not a relaxing experience for me to be told, You’re going to brief the director twice a day on this case, every day at 7 A.M. and 5 P.M. Mueller was also a prosecutor. He cross-examines you every time you’re in front of him. Ball-busting is his way of expressing affection.
