I had heard of John Walker, but had not heard it referenced as the Walker Family Fiasco.
I was stationed in the Air Force Security Service base (the Air Force electronic spy arm) in Misawa Japan in the 1970s. I was in purchasing, and had nothing to do with security or spy functions, but as a staff member I was not only allowed, but required to attend a security briefing every Tuesday morning. At the time, it dealt with what was going on in Viet Nam, and even then I was surprised that so much classified information was given to so many support officers that had absolutely no reason to hear it. I knew that since then, much of this was changed, but I do not know to what extent.