242 F.3d 458 (3rd Cir. 2001) UNION RAILROAD COMPANY,v.UNITED STEELWORKERS OF AMERICA; UNITED STEELWORKERS OF AMERICA – DISTRICT 10; UNITED STEELWORKERS OF AMERICA – LOCAL 3263, APPELLANTSUNITED STEELWORKERS OF AMERICA, AFL-CIO-CLC, PETITIONERv.UNITED STATES OF AMERICA; AND SURFACE TRANSPORTATION BOARD, RESPONDENTSUNION RAILROAD COMPANY (“URR”) AND BESSEMER AND LAKE ERIE RAILROAD COMPANY (“B&LE”), INTERVENORS* No. 97-3680, No. […]