The petition for writ of certiorari is granted. The joint motion of petitioner and the Solicitor General for remand of this case is granted. The judgments of the Court of Appeals and the District Court are vacated and the cause is remanded to the District Court for consideration of the effect of § 25 of the Subversive Activities Control Act of 1950, 64 Stat. 987, 1013, with leave to each party to present further evidence upon the material issues of the case.