Mealey's (September 2, 2020, 11:19 AM EDT) -- MINNEAPOLIS — A lack of calculations by an engineering expert makes his opinions unreliable and irrelevant to a jury, a Minnesota federal judge ruled Aug. 31 in excluding the expert's testimony in a farming cooperative's breach of contract suit over faulty silos (Southern Minnesota Beet Sugar Cooperative v. Agri Systems, No. 17-5552, D. Minn., 2020 U.S. Dist. LEXIS 157852)....