Mealey's (May 17, 2019, 12:02 PM EDT) -- CHICAGO — The Seventh Circuit U.S. Court of Appeals on May 16 affirmed a district court’s ruling in favor of an insurer on the applicability of the sudden and accidental exception to a policy’s pollution exclusion XE "pollution exclusion" , agreeing with the lower court’s finding that the insured could not prove that the contamination was sudden and accidental because the insured’s expert testimony was inadmissible (Varlen Corp. v. Liberty Mutual Insurance Co., et al., No. 17-3212, 7th Cir., 2019 U.S. App. LEXIS 14529)....