Felix Frankfurter,
Phelps Dodge Corporation v. National Labor Relations Board…
“ And during the late war the National War Labor Board concluded that discrimination against union men at the time of hiring violated its declared policy that 'The right of workers to organize in trade-unions and to bargain collectively * * * shall not be denied, abridged, or interfered with by the employers in any manner whatsoever'. [4] Such a policy is an inevitable corollary of the principle of freedom of organization. Discrimination against union labor in the hiring of men is a dam to self organization at the source of supply. ”
