Yi Yongsheng shows a photo of his deceased infant son with his grandfather, Sunday, Oct. 12, 2008, at his Xinxing home in China's northern Gansu province. The death of Yi's son from kidney failure was one of four China's government has reported so far in a tainted milk scandal. Thousands of children were sickened after eating milk powder laced with the industrial chemical melamine. (AP Photo/Greg Baker)