It's going to take me a little while to read these carefully and give them enough of my attention to do them justice (pun not intended), but for anyone who wants to read the actual decision, along with the three concurring and one dissenting opinions that are the actual and whole context of the quote that Dave (tam) posted on 18 Apr 05 - 04:07 PM, here they are...

Opinion of the court

Justice Douglas, concurring

Justice Brennan, concurring

Justice Goldberg with whom Justice Harlan joins, concurring

Justice Stewart, dissenting