(January 4, 2018, 2:31 PM EST) -- WASHINGTON, D.C. — A federal appeals court used the wrong standard in ruling on a trial court’s admission of expert testimony, 137 residents of a Pennsylvania town say in their Dec. 20 U.S. Supreme Court petition seeking review of their claims that illegal releases from a nuclear materials processing plant caused their cancers and the deaths of their family members (Michelle McMunn, et al. v. Babcock & Wilcox Power Generation Group, Inc., et al., No. 17-907, U.S. Sup., 2017 U.S. S. Ct. Briefs LEXIS 5119)....