491 U.S. 490 109 S.Ct. 2584 105 L.Ed.2d 415 PITTSBURGH & LAKE ERIE RAILROAD COMPANY, Petitioner,v.RAILWAY LABOR EXECUTIVES’ ASSOCIATION. PITTSBURGH & LAKE ERIE RAILROAD COMPANY, Petitioner, v. RAILWAY LABOR EXECUTIVES’ ASSOCIATION, et al. Nos. 87-1589, 87-1888. Argued March 29, 1989. Decided June 21, 1989. Syllabus Faced with heavy losses, petitioner Pittsburgh and Lake Erie Railroad […]