Someone posted an open letter to Monsanto there yesterday, listing off the small roadblocks they've been hitting during the lobbying they've been doing in the US to prevent dairy farmers or producers from labelling their milk rBGH-free (rBGH or recombinant Bovine Growth Hormone is manufactured by Monsanto and marketed under the name POSILAC). I was grinning from ear to ear reading it. Monsanto's take on it is that having some dairy products labelled rBGH-free would invariably lead consumers to believe that there's something wrong with it, which would in turn lead to consumers avoiding dairy products coming from cows who've been injected with it.
The Organic Consumers' Association website has a section dealing with the rBGH issue, featuring everything from news stories about it to lists of rBGH-free producers and companies. They also spell out all of the reasons its usage ranges from problematic to outright dangerous, both to cows, as well as to the humans who consume the dairy products coming from cows injected with it.