People shout slogans "Cheer up, China!", "Cheer up, Wenchuan!" after a three-minute silent tribute to quake victims, at the Tian'anmen Square in central Beijing, capital of China, May 19, 2008. China began on May 19 a three-day national mourning for the people dead in the 8.0-magnitude quake hitting southwest and northwest China. (Xinhua/Wang Yongji)

People shout slogans "Cheer up, China!", "Cheer up, Wenchuan!" after a three-minute silent tribute to quake victims, at the Tian'anmen Square in central Beijing, capital of China, May 19, 2008. (Xinhua/Wang Yongji)

People shout slogans "Cheer up, China!", "Cheer up, Wenchuan!" after a three-minute silent tribute to quake victims, at the Tian'anmen Square in central Beijing, capital of China, May 19, 2008.  (Xinhua/Wang Yongji)

People shout slogans "Cheer up, China!", "Cheer up, Wenchuan!" after a three-minute silent tribute to quake victims, at the Tian'anmen Square in central Beijing, capital of China, May 19, 2008.  (Xinhua/Wang Yongji)