What do you call a large complex, replete with security guards and metal detectors and which is sometimes put on lockdown, whose occupants (many of whom are illiterate) are there by compulsion?
An American high school!
"Construction crews are about a month away from finishing constructing fences and gatehouses at all three of the [Edmond] district's high school campuses," Jesse Olivarez reports today in The Oklahoman. "The 6-foot-tall metal fences are being built to enclose the entrances of the schools' parking lots. The gatehouses will be built for the schools' main parking lots so parking attendants can check whether those entering or leaving school grounds have permission to do so."