Photo taken on March 6, 2013 shows the information of cancelled flights shown on the screen at the Reagan National Airport in Washington D.C., capital of the United States. (Xinhua/Zhang Jun)
Pedestrians walk with umbrella in Washington D.C., capital of the United States, March 6, 2013. (Xinhua/Zhang Jun)
A woman walks in the snow in Washington D.C., capital of the United States, March 6, 2013. (Xinhua/Zhang Jun)
Photo taken on March 6, 2013 shows the exteriors of Capitol Hill in Washington D.C., capital of the United States. (Xinhua/Zhang Jun)
