Here’s a study that concludes that many Americans believed Saddam Hussein was behind 9-11 because they wanted there to be a reason for the invasion and occupation of Iraq and that was the easiest one available that they’d heard somewhere. The article writes this up rather simplisticly. This does not actually change the fact that the president lied or the PIPA study finding that viewers of different media outlets were more and less likely to believe the lies. What this does illuminate is one of the reasons people chose to believe and cling to this lie beyond mere ignorance of the facts, and — indeed — in the face of those facts.