The Canadian government fired three scientists who have taken high-profile stances critiquing livestock feed regulations to address mad cow disease [3], against Monsanto [4]'s milk hormone BGH [5] and against new uses for Eli Lilly [6]'s antibiotic tylosin for livestock. A government official said, "This is not because of anything they may have said publicly." A union representative rebutted, "The fact that it's three [people fired] on the same day is unusual, and it also, I believe lends credence to the argument we're putting forward that [the firings are] a result of them being whistle-blowers [7]."