The secret tactics Monsanto used to protect Roundup, its star product | Four Corners

Four Corners investigates the secret tactics used by global chemical giant #Monsanto to protect its billion-dollar business and its star product — the weed killer, #Roundup. Read more here: https://ab.co/2C0kyTD For more from ABC News, click here: http://www.abc.net.au/news/ Follow us on Twitter: http://twitter.com/abcnews Like us on Facebook: http://facebook.com/abcnews.au Subscribe to us on YouTube: http://ab.co/1svxLVE Follow us on Instagram: http://instagram.com/abcnews_au