This is what Community Organizers do. This is Obama's objective. This is deliberate. This is funded by George Soros who is a major sponsor of Obama. I have no doubt that Obama is behind all of these "Occupy" rent-a-mobs ... as a counterweight to the Tea Partiers.
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Before the 2012 elections, I fully believe that it is Obama's plan that these "Occupy" mobs turn violent. It is part of his "Change" America from a country based on free-enterprise to his destruction of capitalism replaced by marxism and communism.