Supreme Court May Block Thousands of Lawsuits Over Monsanto's Weed Killer

The U.S. Supreme Court will hear Monsanto's argument that federal pesticide law should shield it and parent company Bayer from tens of thousands of state lawsuits over Roundup since the Environmental Protection Agency has not required a cancer warning label. The case could determine whether federal rules preempt state failure-to-warn claims without deciding whether glyphosate causes cancer.