Repeating suggestions from other experts, Lt. Graves theorised the UFOs he sighted could be a secret US technology, enemy surveillance devices or something else completely.
He said: “This is a difficult one to explain.
“You have rotation, you have high altitudes. You have propulsion, right?
“I don’t know. I don’t know what it is, frankly. I would say, you know, the highest probability is it’s a threat observation program.”
This post originally appeared on Daily Express :: Weird Feed