Conspiracy Theory

conspiracy theory?
what is the craziest, most interesting, or most believable conspiracy theory you've ever heard and what proof did they have?

Jews caused all wars,
Mel Gibson
References :

I like the da vinci code theory about mary magdalene…
it's kind of reliable and it makes total sense to me…
References :

That the government lied about 911.I heard that all tapes pertaining to the images and stuff like that were confiscated.I heard this on a talk show few years ago.I still thought that could of been handled better.
References :

That despite all of the eyewitness accounts, it was a missle not a plane that hit the pentagon on 9-11…
References :

The da Vinci Code.
No proof, just many unconnected facts.
References :

I have heard that all women intend to rise up and overthrow the white establishment. Proof is all around us.
References :
Kidding? Well………

Elvis killed JFK before being abducted by aliens who were financed by the Elders of Zion.
References :

The idea that there really is such a thing as Western Civilization! Look at how many books are published on the subject and truth be told while there have been some great men and women that exemplify our better natures most in the west are merely socialized and hardly civilized!
References :

Probably one of the biggest is that there exists an Immuninati, a group of elites that are secretly controlling major events in human society. According to the theory, they've been around for centuries and have caused various events such as the French and Russian Revolutions. (It's their way of keeping governments in check.) They also interfere the workings of governments through infiltration, assassination, and blackmail. Their reach extends into the world's banking systems, from where they exert a powerful influence into the financial world.

The Illuminati started in Bavaria (in what is now southern Germany), but has chapters in many parts of the world. One of the American chapters, the Skull and Bones society, includes both Presidents Bush and Senator John Kerry.

Writers have written much about the Illuminati, and have noted their connections with Freemasonry. Given their long history, this isn't a flash-in-the-pan conspiracy theory, but one that either has some level of validity or simply a profound effect on society.
References :
http://en.wikipedia.org/wiki/Illuminati