I was just reading one of the last of the John D. MacDonald books and one of his characters was a conspiracy nut. One of the other characters observed that it came from a need to believe in organizing principles behind what would otherwise be random events, so that folks would rather believe in a conspiracy, evil or otherwise, than that, in the words of Homer Simpson, "it's just a bunch of stuff that happened".

There have been some excellent documentaries on what brought down the Twin Towers, and although I am honestly curious about what happened to WTC 07, I don't need to believe in evil fairies to inquire honestly wotthehell hoppened. Maybe the foundations were tied together, I dunno...