I'm always fascinated with theories that involve massive plots that would need to involve legions of co-conspirators. Usually, these are the same people furious at our ineffective government. Yet, somehow, that ineffective government excels in only two areas - creating intricate secret plots and keeping thousands of co-conspirators quiet. Apparently, our government brilliantly conceived a faked moon landing, and staged 9/11, both with a level of secrecy that has disposed of the uncertainty of human beings, and an extra dose of complexity (after all , why simply implode the World Trade Center when we could fly planes into the buildings) simply for good measure.
I suspect we'll see a dramatic rise in paranoia over the next several months as the financial crisis continues to develop. The greatest danger isn't financial - it's desperation.