We’ve known for a while that Monsanto buried the truth about Roundup weedkiller by ignoring concerns by its own scientists. Now it seems Dow Chemical Co. has been using the same playbook.Dow (renamed DowDuPont after its 2017 merger with DuPont) likely knew for decades that its widely used chlorpyrifos insecticide is harmful to humans—especially children and developing fetuses.

Source: Did Dow Chemical Fake Safety Studies on Brain-Damaging Chlorpyrifos?