I remember taking a grad class at Berkeley in 1995 and taking a field trip to Lawrence Livermore Labs and actually seeing the networking room. There was a huge world map with lines lit up to show connections. I guess the LLL was one of the big hubs at the time and thinking holy cow this is like George Orwell or something. I got to see the super computers and remember guards armed with maching guns all over the place.
That was such heady times eh?