Mealey's (October 15, 2021, 11:32 AM EDT) -- MINNEAPOLIS — A federal judge in Minnesota on Sept. 30 dismissed a securities fraud class action against the 3M Co., ruling that shareholders did not allege with sufficient particularity that the company misled them with regard to its liabilities from litigation stemming from its production of per- and polyfluoroalkyl substances (PFAS)....