We know the theory that Area 51 is America's top secret alien research base... and that there are UFOs and alien technologies there that could change the world forever. But there are some things about Area 51 that aren't so well known... like how it has also been the site of countless (sometimes fatal) plane crashes! From Lieutenant David Steeves to the world record aviator Steve Fossett, in this video Unveiled discovers the chilling mysteries of the Nevada Triangle...


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