Excerpt from this article:
"In 1967, the CIA moved to counter criticism of the Warren Report by weaponizing the term “conspiracy” as a pejorative in order to discredit skepticism towards the official story of the JFK assassination. With the establishment media still employing similar tactics to this day, we take another look at ten conspiracy theories that came true."
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Recommended reading:
A Sixty Second Seminar on Conspiracy Theory (my post)
Kissinger Admits Plan for New World Order - infowars.com