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See inside the E-4B 'Nightwatch,' nicknamed the 'doomsday plane' for its ability to help US ...
Take a look inside the top-secret aircraft. The E-4B "Nightwatch" is a militarized version of a Boeing 747-200. A US Air Force E-4B "Nightwatch" plane.Fabrizio Gandolfo/SOPA Images/LightRocket via ...