Here’s an article explaining, to some degree, the reasoning behind Black Bloc Tactics in Oakland… While dismissing an article done by left wing journalist Chris Hedges.

http://www.truth-out.org/occupy-oakland/1328726021#.TzLUsJM6IC4.twitter

Worth a read, until you then watch the following video and realise that there is likely far more sinister origins to the so-called “Black Bloc” than we knew…