See inside the E-4B 'Nightwatch,' nicknamed the 'doomsday plane' for its ability to help US presidents survive nuclear war

Tech Insider : Business, Technology, Travel
An E-4B plane.
The E-4B "Nightwatch" is also known as the "doomsday plane."

Justin Oakes/US Air Force

South Korea is working on an 'arsenal ship' in case it has to shower North Korea with missiles

Tech Insider
South Korean navy missile
A South Korean frigate fires a missile during a drill to counter a North Korean ICBM test in July 2017.

South Korean Defense Ministry via Getty Images

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