This information on NPN is a big thorn in the side of the food industry... If they can keep it under the rug, they will... the fact that it was found in most baby formula's last year and that the FDA said not to worry, is not comforting... given the kidney failures that this NPN causes, among other things.
And then there ware the scandals due to all of the pet illnesses and deaths 1 to 2 years ago with the NPN in pet foods... and the dairy products in China - sending 10's of thousands to hospitals with many (hundreds? mostly children) dying... didn't one of those people responsible for that get a death sentence (the male) and the female a life prison sentence? Or something like that...
I think I remember posting a series of these news events in the News forum.