I used to have a security badge to get in there back in 2003 or so. When I was shown around someone said they could cause a minor recession in 5 minutes with an axe. Also they had me grab a fibre that carried all of Japan’s internet traffic. If you pulled that it would route everything the other way around the world through Europe and the east coast.

I had a long lost picture when they were doing some street construction outside and marked all the buried cables with spray paint. Lines going everywhere…