John Keel in a 1967 letter to Jerome Clark said: “UFOs are being built on Earth using our industrial and technical resources”.
All this is being prepared for an evacuation to be carried out just before some cataclysm befalls the planet.”
“Giant objects have been photographed in space with infrared devices (I have seen some of these pictures). These objects are neither illuminated nor reflective, so they are invisible to our normal telescopes. ” ….“-Letter from JAK to Jerome Clark (20 Feb. 1967)