+1 Lou Para.

I heard an interesting perspective regards conspiracy theorists (9/11, Diana, JFK, moon landing etc): that is people need an extra ordinary explanation for extra ordinary occurrences. IE Human psychology dictates that people have trouble accepting simple explanations for complicated, large scale events. It is preferable that the reason is equal to event in complicity.

So people reject the lone gunman in favour of CIA/mob conspiracy, 12 hijackers in favour of CIA involvement etc etc.

Oswald killed Kennedy. Diana died from a car crash. 12 hijackers with Al Qaida support destroyed te twin towers. We landed on the moon in 69.

Though I'm pretty sure aliens did give the nazis UFO technology. That's not conspiracy. It's the truth!