Not just libraries. The college where I did my university access course had a ludicrous filter that wouldn’t allow me, as part of my CS classes, to view programming tutorial sites, as they might contain ‘dangerous source code’. Unimpressed as the IT dept were about this situation it was, apparently, set in stone by Those Above, who liked their filter very much indeed. I asked my lecturer if I could install pingtunnel to see if it would bypass it, but apparently he valued his job too much, or something.
