My dad's brother was stationed in Minot, and i got to go into a silo in 1973. weird. You could feel the heat through your skin from the 'head'. We went through two bulk heads, down a ladder, a lift, then three doors once underground. The code banks were in seperate rooms about twelve feet apart, just like in the movies. You could not turn both keys, punch both codes, or push both sets (three bottons) by yourself.
My wife's father had some nuke papers of highly classified nature from when he worked on a project at Vandenberg in the very early 60's (he had a degree in Neuclear engineering; helped to develope neutron hardening of metals).
We still have a pile of stuff; plans, prints, photos-I assume its all public knowledge by now, fourty years later. Maybe not. Perhaps, like the code, they are valid, but found and published by the unknowing, and if the wrong people can punch the codes in...
