Sixteen-month-old Giant panda cub Bao Bao plays in the snow for the first time at the Smithsonian's National Zoo as a winter storm hits Washington January 6, 2015. The storm was part of a bitter cold snap freezing most of the eastern half of the United States, driving the mercury below zero in the Midwest, with possible freezing temperatures as far south as Atlanta later this week, forecasters said. [Photo/Agencies]