Horne v. Los Alamos Nat'l Sec., L.L.C.Annotate this Case
This case arose from an employee grievance at Los Alamos National Laboratory (LANL), operated by Los Alamos National Security, LLC. After succeeding in arbitration, the employee, John Horne, filed a lawsuit in state district court in 2008, in which he alleged more expansive claims arising out of the same subject matter covered in the arbitration agreement. LANL objected, claiming that it should not have to defend against claims that either were subject to arbitration or were waived by the arbitration agreement. The Supreme Court took the opportunity of this case opinion to discuss the consequences that follow when an employee voluntarily contracts to arbitrate grievances and what the employee must do to preserve a subsequent lawsuit if that is his intention. In this case the Court sided with the district court's ruling in favor of LANL, and reversed the Court of Appeals.