discussed Cited "see, e.g." Quattrone v. Nicolls See also United States ex rel. - Figueiredo v. District Director of Immigration and Naturalization of Port of N. Y., 2 Cir., 1953, 202 F.2d 958 . • Also, this court and numerous other ■ courts have consistently upheld administrative and judicial findings to the effect that the Communist Party of the United States is an organization which , advocates the overthrow of the Government by force and violence.