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An LAPD helicopter claimed to have ID'ed protesters from above and threatened to "come to your house"
(www.motherjones.com)
This is a most excellent place for technology news and articles.
Or even just dress how they'd expect their own to dress, don't even need a dumbass hat. I wear an old tan leather jacket and a Swedish combat cap which apparently translates to friend for them. Also applies to the anarchists though, they see my clothes as friendly.