Steve Haywood at Power Line (h/t Instapundit) has a good post pointing out how the Occupy movement moved quickly from Woodstock to Altamont:

Numerous observers have pointed out how the media and liberals (sorry for the redundancy) lavished sympathy on Occupy Wall Street until it became untenable to continue, after which they began to airbrush their previous encomia.  They seem to forget that what begins as Woodstock somehow always ends up as Altamont….

A few months later the attempted sequel to Woodstock at California’s Altamont Pass ended violently when the Hells Angels hired as stage security proved they were not yet ready to be part of the Age of Aquarius.  The Hells Angels beat a concertgoer to death just a few feet in front of Mick Jagger, who was in the middle of singing “Sympathy for the Devil.”  In contrast to the encomiums to Woodstock, there was little media commentary suggesting that Altamont showed a dark side of the counterculture.

They don’t teach Altamont at school.  I’d be willing to bet that only 1 in 1000 of the yutes under 50 even have heard about it.  It’s the problem I have noticed elsewhere where liberal truisms are based on memory, not history.

Here’s Altamont: