Chobani maintains that the ads are accurate. "Consumers have the right to know what's in their cup," Peter McGuinness, Chobani's chief marketing and brand officer, wrote in a news release. "This campaign is fundamentally about choice--the choice between natural ingredients versus artificial ingredients." Dannon filed a counterclaim against Chobani. General Mills, which makes Yoplait, sued Chobani over the ads in federal court in Minneapolis. "The television commercial... goes so far as to convey that, because Yoplait Greek 100 is laced with a pesticide, it is so dangerous and unfit to eat that consumers should discard it as garbage," General Mills' lawyers wrote in court papers. Federal agencies have found potassium sorbate to be a safe food ingredient, the lawyers said.