Before revision: Permissive Action Links, Carey Sublette, at the Nuclear Weapon Archive, accessed March 11, 2007 Between the exclusion zone and the actual detonators, a normally-disconnected link mechanism is used, such as a switch which has a built-in motor to activate it.
After revision: Between the exclusion zone and the actual detonators, a normally-disconnected link mechanism is used, such as a switch which has a built-in motor to activate it.