Most cases against Roundup are pending in state courts that do not adopt the Daubert (reliability) standard and Rule 702 of the Federal Rules of Evidence. These cases are decided under the older Frye standard, which simply requires a consensus in the scientific community to lay the groundwork for expert testimony establishing a causal connection between the product and the claimed harm. This is amply provided by the unfortunate and suspect IARC classification of glyphosate as a Category 2A (probable carcinogen), notwithstanding significant opinion to the contrary. [1]
Based on these parameters, the plaintiffs are finding it easier to establish the first part of the causation question, general causation, i.e., does the product cause harm in the general...