Carey Gillam is an investigative journalist who is on the forefront of the Monsanto expose. Through hard work and FOIA requests she uncovered a very tangled web of ghost writing, bought science and regulatory capture. Her book, Whitewash: The Story of a Weed Killer, Cancer, and the Corruption of Science lays out the entire mess.
Also- update on a similar situation between Coca Cola and the CDC.
More on Carey: http://careygillam.com/
More information on the Monsanto Declassified and FOIA Documents: https://www.baumhedlundlaw.com/toxic-tort-law/monsanto-roundup-lawsuit/monsanto-secret-documents/