Steve MacDonald, who is homeless, watches television in the overflow room at the Atlanta Mission shelter in downtown Atlanta, Georgia Jan 7, 2014. "I'd probably freeze to death if it wasn't for this shelter," he said. A deadly blast of arctic air shattered decades-old temperature records as it enveloped the eastern United States on Tuesday, snarling air, road and rail travel, driving energy prices higher and overwhelming shelters for homeless people. [Photo/Agencies]