Named for an old mining camp, Tin City is a tiny Air Force installation atop an ice-shrouded coastal mountain 50 miles below the Arctic Circle, far from any road or even trees. The Pentagon took over the remote site decades ago and built a long-range radar station to help detect a surprise attack from the Soviet Union. At least from this frozen perch, America's closest point to Vladimir Putin's Russia, the Cold War is turning warm again. http://www.latimes.com/nation/la-na-alaska-russia-20150406-story.html#page=1