Chinese President Xi Jinping (1st R) meets with his U.S. counterpart Barack Obama (1st L) on the sidelines of the fourth Nuclear Security Summit in Washington D.C., the United States, March 31, 2016. (Photo: Xinhua/Xie Huanchi)
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Chinese President Xi Jinping (1st R) meets with his U.S. counterpart Barack Obama (1st L) on the sidelines of the fourth Nuclear Security Summit in Washington D.C., the United States, March 31, 2016. (Photo: Xinhua/Xie Huanchi)
