Barentsburg, Norway - Hammer and sickle banners hang from the wall of a rundown hangar and a statue of Lenin stands proud: the USSR no longer exists but you would not know it from visiting the small Russian mining town of Barentsburg in the Svalbard archipelago in the Arctic. Cut off from the rest of the world on the island of Spitsbergen, Barentsburg is surrounded by water in summer and ice in winter, accessible only by helicopter, snowmobile or boat depending on the weather. The thousand or so hardened residents here have learned to be self-sufficient, but they live in...