(October 31, 2023, 1:04 PM EDT) -- SEATTLE — A federal magistrate judge in Washington has excluded two expert witnesses that Monsanto Co. sought to use in a polychlorinated biphenyls (PCBs) contamination lawsuit, ruling that Monsanto failed to justify the late disclosure of one expert’s report and that the other expert’s report was based on “unreliable methodology and data” obtained from the first expert. The magistrate judge also excluded one of the plaintiff’s rebuttal witnesses due to her lack of “foundation of knowledge.”...