Occupy Wallstreet

So I was watching some live feeds from Occupy Wall Street. I can't really figure out what they're trying to accomplish, while I have seen some give semi-galvanizing speeches, others appear to be absolutely insane. There doesn't seem to be any kind of demands and it's not clear what conclusion they are trying to reach. How come none of them are protesting against Obama losing $500,000,000 taxpayer dollars so as to ensure his friends wouldn't lose money?

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