The rebellion which rose to a peak here and there and over and over during the period from 1964 to the early 1970s was nothing else than an ongoing assault on American civilization. The most dramatic episodes in this assault were Black riots in cities and student takeover attempts of universities. But the assault had many facets, ranging from the raucous noise of hard rock to pornographic movies to the obscenities that now became rampant in much discourse to the peddling of sexism in Playboy to the vulgarities of Hustler magazine. The assault was the new destruction which followed in the wake of the new reconstruction.
Clarence B. Carson, A Basic History of the United States, Volume 5: The Welfare State 1929-1985, pg.247