(January 22, 2018, 6:36 AM EST) -- KNOXVILLE, Tenn. — A couple on Dec. 11 filed a complaint in Tennessee federal court seeking damages against Monsanto Co., alleging that it knew that the chemical glyphosate, which is the active ingredient in the herbicide Roundup, could pose “significant risks to human health, including a risk of cancer” yet misrepresented it as safe (Warren Ahrent, et al. v. Monsanto Company, No. 18-65, E.D. Tenn.)....