[gwmoore]

The "crude drawings" were of technology which the Soviets may not have thought of and were the crucial item in making that particular weapon design function. Even though the "secrets" are now pretty much publicly known, I still don't like discussing exactly what they were, kind of a reflex habit from myriad numbing security briefings ;-) The briefings never quite leave your thoughts LOL...
Greg

[El Gato]

The briefings never quite leave your thoughts LOL...

Especially the part where they threaten you with GANJI if you ever reveal any of that stuff, and mention that unless you get the official declassification notice, it's still classified not matter how much of it become "publicly known".