PD, if you're interested in the psychology of Conspiracy Theorists, check out the work of Tjeerd Andringa. He is a professor at the University of Groningen in the Netherlands.
He explains how socialists desperately seek the simplicity authoritarianism offers because they fear complexity, whereas conspiracy theorists tend to be more comfortable with it.
http://www.geopoliticsandcognition.com
Also, if you've not seen this video where psychologists and psychiatrists explain the hatred and anger people exhibit toward 9/11 conspiracy theorists, it's worth a look.