FILE – In this Feb. 14, 2012, file photo President Barack Obama and Chinese Vice President Xi Jinping, left, engage media during their Oval Office meeting at the White House in Washington. When ... more 
FILE – In this Feb. 14, 2012, file photo President Barack Obama and Chinese Vice President Xi Jinping, left, engage media during their Oval Office meeting at the White House in Washington. When Obama and Jinping meet again at week's end for an unusual two-day summit at a Southern California estate, Obama will be looking for signs of seriousness in China's recent private pledges to address cyberhacking, which he has said is a rapidly growing threat to national security. This while keeping present that it is China, whose help will be needed to stem nuclear threats from North Korea and Iran, to curtail the violence in Syria, and to build on the U.S. economic recovery. (AP Photo/Susan Walsh, File) less 
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Associated Press | Photo By Susan Walsh, File
Sun, Jun 2, 2013 8:40 AM EDT