Michael Mason, the Executive Assistant Director of the FBI, at his office at FBI Headquarters, Dec. 6, 2006, in Washington. Since late April, Mason, due to the shortage of school bus drivers, has been working in his retirement for Chesterfield County Public Schools as a bus driver. While it differs drastically from his previous profession, “I feel the same sense of duty,” he said. (Jahi Chikwendiu/The Washington Post via AP)