Justices [[Hugo Black]], [[John Harlan II]] and [[Potter Stewart]] concurred in the verdict, each writing a separate concurrence. Justice Stewart, for example, would have invalided the statute on vagueness grounds. | Justices [[Hugo Black]], [[John Harlan II]] and [[Potter Stewart]] concurred in the verdict, each writing a separate concurrence. Justice Stewart, for example, would have invalided the statute on vagueness grounds. |