In Brotherhood of R.R. Trainmen v. Howard, 343 U.S. 768, 72 S.Ct. 1022, 96 L.Ed. 1283 (1952), the employer, under threat of a strike, agreed with the BRT to fire black train porters on its lines and replace them with white brakemen. The Supreme Court held that the Railway Labor Act "prohibits bargaining agents it authorizes from using their position and power to destroy colored workers' jobs in order to bestow them on white workers." Id. at 774, 72 S.Ct. at 1025. The Supreme Court noted that "these train porters are threatened with loss of their jobs because they are not white and for no other reason," id. at 773, 72 S.Ct. at 1025, and that "for more than a quarter of a century the BRT and other exclusively white rail unions had continually carried on a program of aggressive hostility to employment of Negroes for train, engine and yard service." Id. at 771, 72 S.Ct. at 1024