The county seat of Beichuan was devastated by the May 12 earthquake of 2008. [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]

The county seat of Beichuan was relocated and rebuilt. [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]

Premier Wen Jiabao, who was visiting the earthquake-hit Beichuan county, gave way to the three-year-old Song Xinyi who needed emergency rescue on May 14, 2008. [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]

Taken on April 13, 2011, this photo shows the Jina Village of Qiang Ethnic People in Beichuan after reconstruction. [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]

Three-year-old boy Lang Zheng salutes soldiers after being rescued from the earthquake in Beichuan in southwestern China's Sichuan province on Tuesday, May 13, 2008. The photo moved lots of Chinese netizens, many commenting that they see the hope for China from the boy. Lang was also dubbed "salute boy". [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]

Close-up of Lang Zheng. [Photo/All-China Federation of Returned Overseas Chinese and China Intercontinental Press]