In Labor Board v. Cabot Carbon Co. (1959) 360 U.S. 203, the United States Supreme Court decided that an employee committee constituted a labor organization under the NLRA. In so holding, the court rejected the respondents' First Amendment claim: "Respondents argue that to hold these employee committees to be labor organizations would prevent employers and employees from discussing matters of mutual interest concerning the employment relationship, and would thus abridge freedom of speech in violation of the First Amendment of the Constitution. But the Board's order does not impose any such bar; it merely precludes the employers from dominating, interfering with or supporting such employee committees which Congress has defined to be labor organizations." (Id. at p. 218 79 S. Ct. at p. 1024.)