Q CLEARANCE
In 1983, actor Charlton Heston received Q clearance in order to narrate instructional films for DOE related to nuclear weapons. He held Q clearance for 6 years. This was during the Reagan administration. Reagan also held Q clearance.
I just happened to find out this info last night after researching him after watching his very first film "Dark City". I was quite surprised on learning this. Considering Heston's staunch support of the 2nd Amendment, I now wonder what he found out during his Q years.
http://articles.latimes.com/1989-11-09/entertainment/ca-1378_1_charlton-heston
https://www.military.com/veteran-jobs/career-advice/military-transition/famous-veteran-charlton-heston.html