China is grappling with another tainted milk scandal that has killed three children, though this appears to be a case of intentional poisoning: Investigators discovered that nitrite, an industrial salt, was added to milk from two dairies last week, according to state media. A suspect has been taken into custody, though no additional details were offered. AP reports that the three victims were all under 2 years; one was just 36 days old. An additional 36 people, most of them children, were also sickened. Click for more on China's previous tainted milk scandals. (More China stories.)