U.S. Secretary of State John Kerry talks with Chinese President Xi Jinping during their meeting at the Great Hall of the People in Beijing on April 13, 2013.

Chinese President Xi Jinping taking part in a ceremony at the Great Hall of the People in Beijing Sept. 28, 2011.

Xi Jinping attends the banquet marking the 63rd anniversary of the founding of the People's Republic of China on Sept. 29, 2012 at the Great Hall of the People in Beijing.

Heir apparent Xi Jinping, seen here with China’s other top leaders at a National Day celebration, is poised to take the reins in November

Xi Jinping, foreground, the likely successor to Chinese President Hu Jintao, delivers remarks at the Great Hall of the People in Beijing on March 11, 2008

Chinese Vice President Xi Jinping during a meeting with a foreign dignitary on Aug. 29, 2012, in Beijing

Chinese Vice President Xi Jinping (2nd R, front) attends an activity to mark this year's National Science Popularization Day at China Agricultural University in Beijing, capital of China, Sept. 15, 2012

Chinese Vice President Xi Jinping waves to students during a visit to Chulalongkorn University in Bangkok on Dec. 24, 2011

Vice President Xi Jinping of the People's Republic of China stands next to Rick Kimberley (R) during a visit to the Kimberley's farm of February 16, 2012 near Maxwell, Iowa.

Chinese Vice President Xi Jinping waves to Thai students during a visit to Chulalongkorn University in Bangkok, December 24, 2011.

From left: Chinese President Xi Jinping and First Lady Peng Liyuan wave from their plane upon their arrival at Julius Nyerere International Airport in Dar es Salaam March 24, 2013.

South Africa's President Jacob Zuma shakes hands with China's President Xi Jinping after a media briefing at the presidential guest house in Pretoria, on March 26, 2013

China's Vice President Xi Jinping has lunch with soldiers during his inspection of the Guangzhou Military Region in South China, Dec. 23, 2012.

(L-R) Zhang Gaoli, Liu Yunshan, Zhang Dejiang, Xi Jinping, Li Keqiang, Yu Zhengsheng and Wang Qishan greet the media at the Great Hall of the People on November 15, 2012 in Beijing, China.

Chinese President Hu Jintao, left, chats with Vice President Xi Jinping on March 13, 2009 as they leave the Great Hall of the People after the closing ceremony of the National People's Congress in Beijing

U.S. Treasury Secretary Jacob Lew (L) chooses dishes from a menu as he lunches with U.S. government officials at a dumpling restaurant in Beijing March 19, 2013. Lew met new Chinese President Xi Jinping on Tuesday at a critical time in relations between the world's two largest economies, with cyber hacking, market access and the Chinese currency high on the agenda for talks. REUTERS/Kim Kyung-Hoon (CHINA - Tags: POLITICS MILITARY FOOD)