Senior Chinese leaders including Hu Jintao, Wu Bangguo, Wen Jiabao, Jia Qinglin, Li Changchun, Xi Jinping, He Guoqiang and Zhou Yongkang mourn during a silent tribute to the dead in the earthquake hitting southwest China's Sichuan Province, in Beijing, May 19, 2008. Former President Jiang Zemin also stood in silence, separately, while Li Keqiang, another senior Chinese leader, observed the period of silence in Beichuan County of Sichuan on May 19. (Xinhua)