U.S. Secretary of State Hillary Clinton attends a meeting between U.S. President Barack Obama and Shanghai Communist Party chief Yu Zhengsheng at the Xijiao State Guest House in Shanghai November 16, 2009. Obama faces tensions with China over trade and Tibet on his first visit to the emerging superpower for a summit that will grapple with economic imbalances and the future of the yuan currency.
REUTERS/Jim Young (CHINA POLITICS)