http://www.cdi.org/blair/permissive-action-links.cfm
" The Strategic Air Command (SAC) in Omaha quietly decided to set the “locks” to all zeros in order to circumvent this safeguard... It is hard to know where to begin, and end, in recounting stories like this one that reveal how misinformed, misled, and misguided on critical nuclear matters our top leaders have been throughout the nuclear age. A multitude of such examples can, and will, be described in forthcoming columns."
Each year that we learn more about the Cold War, Dr. StrangeLove seems to become more a documentary than a parody.
-- Steve