Nearly a year after a massive earthquake devastated southwestern China, the government has yet to release the death toll of children killed in collapsing schools. Here, a woman mourns her dead child at the ruins of a middle school in Beichuan county in China's Sichuan province on Jan. 25. China Photos/Getty Images
Beijing artist and activist Ai Weiwei is on a mission to document the schoolchildren killed in the earthquake. He began his investigation in December 2008 by calling about 200 government offices and asking how many schoolchildren were killed. He says officials never gave him a number. Courtesy of Ai Weiwei
南京！南京！ (City of Life and Death)
