Heres a damm good reason why Antifa should be seriously looked at and it comes from a comment section in Free Republic who posted this photo essay
http://www.freerepublic.com/focus/f-news/3760618/posts/#40
Note the flags used here
I wonder if many of the armed antifa are CIA mercenaries? Hell, the whole thing may be a CIA op, and they have little difficulty pulling in dopey leftists to serve as human shields for the mercs who are orchestrating them.