This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > The Doctors, toxicologist Donna Farmer, and author Jeffrey Smith offer their final thoughts on the safety of glyphosate, a widely used herbicide that the International Agency for Research on Cancer recently classified as a carcinogen. ShareTweet
