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The truth is out there: Biggest conspiracy theories

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A conspiracy theory is usually defined as a belief that the official, or widely accepted version of a circumstance or event, is not the real one, and that the truth is being hidden by those responsible — usually a shadowy person or an organization intent on furthering their own ends.

Some of these theories have been around for centuries, but in the age of the internet and mass communication, they are much more easily spread and maintained. Here, we take a look at a few of the most famous. Microsoft and MSN are not implying any endorsement of the versions of events they contain.

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