Vice President Joe Biden

Vice President Joe Biden

U.S. Vice President Joe Biden signs a basketball accompanied by Chinese Vice President Xi Jinping and students at Dujiangyan Qingchengshan high school outside Chengdu in China's southwest province of Sichuan on August 21. Biden said that the world's biggest economy has never defaulted on its debt and never would, during a visit aimed at boosting Chinese confidence in the U.S. economy. Photograph: Peter Parks/AFP/Getty Images