The Freemason Factor (S04E03)

It has long been rumored that the Freemasons trace their roots back to the medieval warrior monks known as the Knights Templar – and it is an established fact that they were highly influential in the founding of the United States. But just how powerful is this secret society – and what is it that they don't want the public to know? Is there a secret masonic plan just waiting to be triggered – and what would that plan be? (History Channel)