I liked this distinction between protesters and "protesters".
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"...A big mass protest, with plenty of anger directed at police -- no matter how well justified -- creates congenial cover for people who set dumpster fires, smash shop windows, scrawl spray-paint slogans and generate chaos, but don't confuse them with the painfully sincere groups of ministers and priests and the sign-waving folks who line up in public places; it's not that simple. There's not much in the way of direct crossover between them: the protesters at least think things can be made better. The violent types are happy to make things worse."
http://twowheeledmadwoman.blogspot.c...horrified.html