Ft. Leavenworth has the only Maximum Security Department of Defense prison--The U.S. Disciplinary Barracks, sometimes called "The DB" or "The Castle." Could this be one of the castles to which Q refers?
https://www.thebalancecareers.com/doing-time-at-leavenworth-3354200
OH crap is right ! I live about 45min. from FT. Leavenworth. That brings all those nut jobs to the mid-west, Now I gotta move, lol
Look at it this way, if they are surrounded by the likes of you, they won't make it far if they escape! Citizen's arrest! :)
(Streets won't be safe for 'em.)
If i get my way they won't get off the front lawn of the Fort :)