April 28, 1961: President Kennedy calls on the nation's newspapers to censor themselves in publishing information that could be useful to global communism in the cold war. 

"Communism, he said, is a 'monolithic and ruthless conspiracy' that is attacking us all around the world with cold war tactics conducted with wartime discipline.

"He recalled that enemy leaders have boasted that American newspapers had supplied them with valuable facts they could not have obtained elsewhere except by espionage."