They are the beginning of a world wide conspiracy, i am not a paranoid delusional psychotic madman....Its True!!!!

In 1995 the Tan M&M's were replaced by the blue ones. It was made to be a publicity stunt, and the public voted on the new colour. Little did they know that the voting was rigged all along.
In reality, the FDA and Mars corporation fell under intense pressure from backroom lobbyists who work for the extremely wealthy and influential to select blue as the new colour. But why would anyone care what colour the new M&Ms would be?
Blue mind control dye.
I'm not ****ting you. The dye (Phoscyothein) remains in your system forever, but does not affect daily life. Once enough people have been infected with the dye, the FDA will hijack the media. Neurolinguistic programming messages will be sent through all forms of media, causing the world's population to unite like ants in the task of constructing a space elevator for the extremely wealthy.
Whenever I see someone eating M&Ms, I just slap the box out of their hands and proceed to lecture them about how they're contributing to a quasi-Orwellian apocalypse in which the wealthy ascend to a crystal space bunker on a utopian asteroid which is set to pass through earth's orbit in 2034, while the less fortunate are doomed to spiral into the sun in the clutches of it's gravitational pull.
Not many people know about this, so... just getting the word out.