(March 5, 2024, 9:06 AM EST) -- NEW ORLEANS — With the appellees’ consent, the Fifth Circuit U.S. Court of Appeals is letting the U.S. Department of Labor (DOL) participate as amicus curiae in March 11 oral argument concerning the “effective vindication” exception, which a federal court invoked in declining to compel arbitration in a putative class Employee Retirement Income Security Act case....