>> the u.s. government has never commented on broadstreet's documentary. yet it has denied having evidence that extraterrestrials have made contact with humans. >> i do know the interviews came to an end. whether the being died or was retired -- and i don't mean that in a spy sense of having it killed -- i mean retired from the interview process. i just don't know. >> we found out that, yeah, aliens are really real and they're here among us, there's a big portion of the population that would completely freak out. >> some wonder if this video and its extraordinary subject could, in fact, be real. we asked a specialist. >> i have no doubt that it is an animatronic puppet. >> glen hedrick is a hollywood makeup artist. >> the telltale signs to me are that it goes through repetitively and redundantly a specific set of movements. and those parameters are most