In this photo taken in April 1972 and released by China's Xinhua News Agency, Zhuang Zedong, right, shakes hands with U.S. table tennis player Glenn Cowan during a visit to the U.S. Zhuang, a key figure in 1971's groundbreaking "pingpong diplomacy" between China and the U.S., died in Beijing on Sunday. He was 72. Xu Bihua/AP hide caption