(May 26, 2020, 1:57 PM EDT) -- LOS ANGELES — A woman filed a putative class action lawsuit against Walmart Inc. in California federal court on May 22, contending that its sale of the herbicide Roundup is in violation of the state’s unfair competition law because the store sold Roundup despite knowledge that it may cause cancer (Sherry Hanna v. Walmart Inc., No. 20-1075, C.D. Calif.)....