Inside the Military's Hidden Arctic Permafrost Tunnels

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Nearly all of the technology in many of the world's most ubiquitous electronic devices can be traced to a single, taxpayer-funded source: the US Department of Defense. What some people don't know is a lot of engineering also can be traced back to the DoD. The Permafrost tunnels, originally created to test Arctic survival have become a critical asset in developing long-lasting infrastructure in the Arctic. (U.S. Air Force video by Tech. Sgt. Perry Aston)