Melamine is at the center of a recall of 60 million packages of pet food, after the chemical was found in wheat gluten linked this month to the deaths of at least 16 pets and the illness of possibly thousands of pets in the United States. the whole story: http://www.nytimes.com/2007/04/30/business/worldbusiness/30food.html?_r=1&hp&oref=slogin