Associated Press
A Secret Service K-9 unit patrols between tourists visiting the White House under falling snow, Thursday, March 5, 2015, in Washington. The U.S. federal government said its offices in the Washington area will be closed Thursday because of a new round of winter weather expected in the region. The Office of Personnel Management said non-emergency personnel in and around Washington were granted excused absences for the day. Emergency employees and telework-ready employees were expected to work. (AP Photo/Jacquelyn Martin)

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