Less than a decade! I was in college from 1966 - 1970 and the differences between the entering freshman clases from '66 to '70 was profound and, to me, shocking.
"Beach Music" rock-and-roll v acid rock
beer/liquor v pot
girls with traditional morals v girls with ah, "looser" standards
respect for authority v contempt for authority
"Affirmation Viet Nam" (remember that?) v anti-war protests
neat clothing (dry cleaned clothes, socks and shoes) v slobby-looking (torn clothing, barefoot)
I could go on and on about it, but, needless to say, I was damn glad to be out of there. But over the years, I've spent some time pondering what the hell happened to America.
The truth is .......... McCarthy was right. And those old communists/socialists have never left this nation and presently nearly totally control old media (that includes "entertainment") and the public schools.......... nearly all OPINION CREATING INSTITUTIONS.
That is the truth.
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The old established/liberal/socialist media is America's most ruthless, relentless, and destructive enemy.
Huxley: The greatest triumphs of propaganda have been accomplished, not by doing something, but by refraining from doing. Great is truth, but still greater, from a practical point of view, is silence about truth." Old Media lives these words.