A traditional Mexican Indian dancer waits for the arrival of China's President Xi Jinping near the Mayan ruins of Chichen Itza, southern Mexico, June 6, 2013. Xi said China will sign contracts to buy more than $1 billion worth of Mexican products. He also said the number of scholarships for Mexicans to study in China will be increased to 300 over the next three years from 40. (Eduardo Verdugo/AP Photo)