The protests in Iran today are almost certainly being extensively backed by the CIA and other US organizations. Do not mistake a minority as necessarily representing much more than themselves. Of course they might (I certainly don't have any particular insight in the "real" Iran), but you could certainly see something similar happening in the US with extreme groups, left or right wing, becoming visibly active if they were able to find a strong backing/organizing power that made them believe that they could genuinely overthrow the government. The point being that the actions and claims of those groups would not necessarily represent the US at large.