WARSAW/BOGDANKA, POLAND — In Poland's late summer heat, dozens of cars and trucks line up at the Lubelski Wegiel Bogdanka coal mine, as people fearful of winter shortages wait for days to stock up on heating fuel in queues reminiscent of communist times. Artur, 57, a pensioner, drove up from Swidnik, some 30 kilometers from the mine in eastern Poland on Tuesday, hoping to buy several tons of coal for himself and his family. "Toilets were put up today, but there's no running water," he said, after three nights of sleeping in his small red hatchback in a crawling queue...