A former Army Sergeant, Clifford Stone, has said the US Government had tried to suppress what he actually seen one strange day in Pennsylvania, back in 1969.
"I was involved in situations where we actually did recoveries of crashed saucers. There were bodies that were involved with some of these crashes. Also some of these were alive," he said. "While we were doing this, we were telling the American public there was nothing to it. We were telling the world there was nothing to it," Mr Stone added.
"You have individuals that look very much like you and myself, that could walk among us and you wouldn't even notice the difference," he said.
Stone claimed to have catalogued 57 different species of alien life forms.