Former Pentagon UFO official Lou Elizondo breaks down the five observables. The criteria created to identify UFOs. #Unidentified Subscribe for more from Unidentified and other great HISTORY shows: http://po.st/SubscribeToHistory Find out more about the show and watch full episodes on our site: http://po.st/unidentified-inside-americas-ufo-investigation Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter UNIDENTIFIED: INSIDE AMERICA’S UFO INVESTIGATION will reveal newly authenticated evidence and footage, interviews from eyewitnesses and former military personnel who have never spoken out before, and extensive breakthroughs in understanding the technology behind these unknown phenomena in our skies. HISTORY®...
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