I toured the only nuclear missile submarine in the US open to the public. Take a look inside.

Tech Insider
The Growler submarine at the Intrepid Museum.
The USS Growler submarine at the Intrepid Museum.

John Arehart/Shutterstock

Rare photos show life inside North Korea's top-secret military

Tech Insider
North Korean military
A North Korean woman and soldiers near the North Korean town of Sinuiju.

REUTERS/Jason Lee

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