(April 14, 2023, 11:34 AM EDT) -- SAN FRANCISCO — Monsanto Co. on April 13 filed an answer in California federal court contending that a cancer victim’s lawsuit against it for damages from exposure to the herbicide Roundup, which contains the active ingredient glyphosate, fails because any alleged negligent conduct on Monsanto’s part “was so insubstantial as to be insufficient to be a proximate or substantial contributing cause of plaintiff’s alleged injuries.”...