The real story of Laurel Canyon was written by Dave McGowan and it goes into great detail of how the hippie counter culture and music scene was completely created by the MIC. Anything saying anything else is just propaganda.
I was sold on McGowan's piece until I read his work on the moon landings, which was utter raving nonsense. I was much less sold after that.
But I think it's still fair to question the extent to which psychedelia and pro-peace (as opposed to anti-war) culture was deliberately seeded and manufactured - in the same way that abstract art and music were promoted to intellectuals by the US primarily for nationalistic and political reasons.
Dave's Laurel Canyon piece is meticulously researched and he's in his specialty. He's wrong about the moon landings.