Seoul, South Korea
CNN
 — 

That economy-class seat you once occupied while flying in Asia might one day be the very place from where the United States nuclear weapons arsenal is controlled.

That’s because five Boeing 747 passenger jets once operated by the South Korean flag carrier Korean Air have been purchased by the Sierra Nevada Corporation, the contractor for the replacements for the US Air Force’s current fleet of strategic command and control military aircraft, more commonly known as “Doomsday” planes.

Also known as the E-4B “Nightwatch,” the Doomsday planes are designed to be command-and-control…