BTW the strangest fire suppression system I ever saw was a CO2 system that would make the computer room like the surface of Venus (lethal concentration) in about 2 seconds. This was Atomic Energy Commission Germantown Md
They also had the first "motion sensor" alarm system I ever saw. It was a couple 60w bulbs running on reduced voltage strategically placed and it looked for moving shadows with photo detectors.
The rumor was the CO2 was connected to the burglar system. Yikes! I never believed it but this was a "cold war" agency so who knows. I was always in there with an "escort" and my plan was to beat him to the door if the alarm went off.
