U.S. Secretary of State John Kerry, center, looks on as U.S. Ambassador to China Gary Locke, left, shakes hands with China's Premier Li Keqiang during a meeting at the Zhongnanhai compound in Beijing Saturday, April 13, 2013. (Associated Press)
Senior Col. Dai Xu, a Chinese air force officer, is a prominent voice inside China on military strategy and national security whose extremist views about the U.S. are encouraged by China's tightly controlled mainstream media.
Tiger Woods, left, chats with amateur Tianlang Guan, of China, on the driving range during a practice round for the Masters golf tournament Monday, April 8, 2013, in Augusta, Ga. (AP Photo/Darron Cummings)
** FILE ** Chinese President Xi Jinping speaks during a meeting with representatives of entrepreneurs at the annual Boao Forum in Boao, in southern China's Hainan province, on April 8, 2013. (Associated Press)
U.S. actor Robert Downey Jr. poses with a Iron Man figure on stage during a promotional event of his new movie "Iron Man 3" before its release in China in early May at the Imperial Ancestral Temple in Beijing's Forbidden City Saturday, April 6, 2013. (AP Photo/Andy Wong)
** FILE ** In this April 3, 2013, photo, a worker pushes a cart as live pigeons are sold at a cage at a poultry wholesale market in Shanghai China. China announced a sixth death from the new bird flu H7N9 strain Friday, while authorities in Shanghai halted the sale of live fowl and slaughtered all poultry at a market where the virus was detected in pigeons being sold for meat. The first cases were announced Sunday. (AP Photo/Eugene Hoshiko)
In this June 27, 2008, file photo released by China's Xinhua News Agency, the cooling tower of the Yongbyon nuclear complex is demolished in Nyongbyon, also known as Yongbyon, North Korea, in a sign of its commitment to stop making plutonium for atomic bombs. (AP Photo/Xinhua, Gao Haorong, File)