sentences:  Justice Black did not issue an opinion of his own.Justice William Brennan, joined by Chief Justice Earl Warren and Justice William O. Douglas, concurred but would have decided the case on much narrower technical rather than First Amendment grounds.Only Justice Tom C. Clark dissented, stating "Since in my view the Postmaster General is required by § 1461 to reject nonmailable matter, I would affirm the judgment on the sole ground that the magazines contain information as to where obscene material can be obtained and thus are nonmailable."