An excerpt from this op-ed (read the complete piece at this link)
Genetically modified alfalfa doesn't sound as important as "the economy," "healthcare," or "jobs." Yet our fourth largest crop, a major feed for dairy cows, has a direct impact on the quality of our milk. By allowing Monsanto to freely modify something so crucial, but so unfamiliar, the Department of Agriculture is facilitating the quiet modification of the American diet without popular consent or notice. More importantly, the company receiving free reign over our food supply is a predatory one, one that collaborates with cigarette companies, makes bestselling pesticides like Roundup—which the alfalfa is bred to resist—and runs small organic farmers out of business by suing them for using patented GM seeds that entered their fields on the wind.