(July 10, 2023, 12:44 PM EDT) -- ATLANTA — Burden-shifting is a focus of briefing before the 11th Circuit U.S. Court of Appeals in a class action over retirement plan fees and funds, with the U.S. secretary of Labor supporting the appellants’ argument that the lower court applied “the wrong standard on causation” and the Chamber of Commerce of the United States of America supporting the appellees’ contentions that the circuit has already rejected burden-shifting....