[Also just published at Independent Australia.]
Back in the 1960s authorities were very exercised that cells of violent hippie peacenik leftists were plotting to overthrow the Government and establish an anarchist hippie socialist dictatorship (there were no greenies yet). This would inevitably morph into communism, the dreaded embodiment of all evil.
The conspirators were a very small fringe of a very large but not very coherent movement that wanted more love, less war, less consumerism and healthier living. Oh, and some drugs and weird clothes, or no clothes. There was the odd kidnapping and a few small bombs let off, some of them doing more harm to the conspirators than to the Establishment, but the large anti-war movements did not automatically join the revolution and the whole thing fizzled. The hippies got mortgages, Ronald Reagan was elected, and Big Business resumed gobbling up the world.