do news writers know what they are writing about?

saw this article about SKorea finding melamine in egg powder... near the end of this article, the reporter attempts to explain what melamine is: "Melamine, an industrial chemical that artificially increases protein content in dairy products, caused an uproar [etc]"...

i think that a chemical that increases protein content would probably be... protein... instead, the clause should be "... increases perceived protein content" or "... increases nitrogen content"...

makes one wonder what other technical terms are being explained wrongly...