More than 50 years after JFK was shot and killed by Lee Harvey Oswald the majority of Americans believe that the assassination was part of a conspiracy. Recent Gallup polls show that 61% believe others were involved in the assassination, while 30% believe Oswald acted alone (in 2000 the numbers were 81% and 13% respectively).
This is despite the fact that the evidence overwhelmingly shows that Oswald acted alone, and there is no solid evidence of any conspiracy. What this reflects, in my opinion, is two things: the psychological allure of conspiracy theories, and the cottage industry of conspiracy theorists.
Whenever I discuss conspiracy theories I have to add this caveat about what I mean. Obviously there are real conspiracies in the world – whenever two or more people work together to commit a crime or do something nefarious, you have a conspiracy. “Conspiracy theories,” however, is short hand for a grand conspiracy, something that involves many people or powerful organizations working over long periods of time through vast networks of control.
Further, like many categories of proponents that skeptics tend to address (pseudoscientists, cranks, true-believers, deniers, etc.), conspiracy theorists are defined mainly by their behavior, the way that they construct their beliefs and arguments.
For example, the power of conspiracy thinking is that it is immune to refutation through evidence. Any lack of evidence was covered up. Any evidence against the conspiracy theory was planted. Anyone who mounts a convincing argument against the conspiracy is part of the conspiracy.
But the cornerstone of conspiracy thinking is anomaly hunting – their “evidence” for a conspiracy is largely apparent anomalies, things that don’t quite make sense at first blush. It’s actually easy to trump up apparent anomalies, because the world is complex and it’s difficult to explain any complex event down to the tiniest detail. Further, people are quirky individuals, and have their own complex motivations for doing things.
Why was there a man standing on the side of the road near where JFK was shot with an open umbrella, on a clear day? The behavior seems anomalous. Perhaps he was signalling the shooter. Unless you had some very specific historical information, you would never guess the real explanation.
One apparent anomaly that JFK conspiracy theorists have pointed to for years is the photo of Oswald prior to the shooting holding a Carcano rifle, the very one used in the assassination of JFK.
Also See: Photo Forensics: Is The Lee Harvey Oswald Photo A Fake? (iLLuMiNuTTi.com)