(April 15, 2020, 1:26 PM EDT) -- OMAHA, Neb. — Even under the reduced causation standard in Federal Employer Liability Act cases, two toxic tort experts lacked sufficient evidence regarding the levels of exposure required to cause lung cancer and whether a man’s work at a railroad would have met or surpassed those levels, a federal magistrate judge in Nebraska said April 13 (Nadine Byrd, et al. v. Union Pacific Railroad Co., No. 18-36, D. Neb., 2020 U.S. Dist. LEXIS 63806)....