FILE - In this June 8, 2013, file photo, President Barack Obama and Chinese President Xi Jinping, left, walk at the Annenberg Retreat of the Sunnylands estate in Rancho Mirage, Calif. A month after

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FILE - In this June 8, 2013, file photo, President Barack Obama and Chinese President Xi Jinping, left, walk at the Annenberg Retreat of the Sunnylands estate in Rancho Mirage, Calif. A month after the presidents of the U.S. and China held an unconventional summit at a California resort, their top officials are convening in more staid surroundings in Washington. They will review security and economic issues that reflect growing ties but also deep-seated differences. (AP Photo/Evan Vucci) less 

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Associated Press
Wed, Jul 10, 2013 3:23 PM EDT