It’s not quite as bad as some have reported – cancer-causing artificial sweetening additives such as as aspartame likely would still need to be listed in tiny letters as ingredients.
But the milk could otherwise be packaged, marketed, and sold as just “milk.” The stated goal is to reverse the trend of lagging dairy consumption by children, particularly in school. From the U.S. government’s Federal Register:
The Food and Drug Administration (FDA) is announcing that the International Dairy Foods Association (IDFA) and the National Milk Producers Federation (NMPF) have filed a petition requesting that the Agency amend the standard of identity for milk and 17 other dairy products to provide for the use of any safe and suitable sweetener as an optional ingredient.
For the rest of the story: http://disinfo.com/2013/05/dairy-associations-lobby-the-fda-to-alter-the-definition-of-milk-to-include-aspartame/