https://www.thenation.com/article/did-monsanto-ignore-evidence-linking-its-weed-killer-to-cancer/

From this article, "In a November 2003 e-mail to Monsanto CEO Sekhar Natarajan, Farmer wrote that the company “cannot say that Roundup is not a carcinogen” because “we have not done the necessary testing on the formulation to make that statement.” She added, “We can make that statement about glyphosate and infer that there is no reason to believe that Roundup would cause cancer.” Donna Farmer is a toxicologist employed by Monsanto.