China's President Xi Jinping, center, and his wife Peng Liyuan hold the "Key to the City" given to them by San Jose Mayor Johnny Araya in San Jose, Costa Rica, Monday, June 3, 2013. Aft

 

              China
China's President Xi Jinping, center, and his wife Peng Liyuan hold the "Key to the City" given to them by San Jose Mayor Johnny Araya in San Jose, Costa Rica, Monday, June 3, 2013. After Costa Rica, Xi has planned stops in Mexico and the United States. Trinidad, a leading supplier of natural gas, was his first stop of a four-country trip in the region. (AP Photo/Arnulfo Franco)