Also, it's a known (but apparently not widely discussed) "security measure" for schools to chain exits shut, in blatant violation of fire code requirements [1]

Also, it's a known (but apparently not widely discussed) "security measure" for schools to chain exits shut, in blatant violation of fire code requirements [1] [2]. [1] http://old.seattletimes.com/html/opinion/2002050731_startz01.html http://old.seattletimes.com/html/opinion/2002050731_startz01... [2] https://www.dallasnews.com/news/education/2010/02/23/chaining-school-doors-a-fairly-common-fire-hazard-state-officials-say/ https://www.dallasnews.com/news/education/2010/02/23/chainin...