UNKNOWN BOUNDARIES, March 21, 2018.
"Without question one of the most credible UFO sightings of all times is the UFO sighting of a dark elliptical craft on Dec. 16, 1953 by one of the world’s leading aircraft engineers, Clarence Leonard “Kelly” Johnson, who designed the U-2 spy plane for the CIA. In addition, what makes this UFO sighting so credible is that unbeknown to Johnson, a Lockheed test pilot on a flight along the Los Angeles coastline corroborated Kelly’s sighting." credit Stig Agermose