Estimating the UFO situation

Salem, Mass., 1952

From the NY Times:

...A new project, code-named “Sign,” based at Wright Field (now Wright-Patterson Air Force Base) outside Dayton, Ohio, was given the mandate to collect U.F.O. reports and assess whether the phenomenon was a threat to national security. With Russia ruled out as the source, the staff wrote a top secret “Estimate of the Situation,” concluding that, based on the evidence, U.F.O.s most likely had an interplanetary origin.

According to government officials at the time, the estimate was rejected by General Hoyt Vandenberg, the Air Force chief of staff. From then on, the proponents of the off-planet hypothesis lost ground, with Vandenberg and others insisting that conventional explanations be found.

Project Sign eventually evolved into Project Blue Book, with the aim of convincing the public that flying saucers could be explained.

Yet behind the scenes, authorities grappled with something sobering: well-documented U.F.O. encounters involved multiple trained observers, radar data, photographs, marks on the ground and physical effects on airplanes.

In 1952, the office of Maj. Gen. John Samford, the Air Force director of intelligence, briefed the F.B.I., saying it was “not entirely impossible that the objects sighted may possibly be ships from another planet such as Mars,” according to government documents. Air Intelligence had largely ruled out an earthly source, the F.B.I. memo reported...

...in 1967, a glowing red oval-shaped object hovered over Malmstrom Air Force Base in Montana, and all 10 of the facility’s underground nuclear missiles became disabled almost simultaneously while the U.F.O. was present, according to interviews with witnesses and official government reports. Technicians could find no conventional explanation...

...Clearly, government agencies continued to have some level of involvement in U.F.O. investigations in the decades following — and to the present. Despite government statements to the contrary, once-secret official documents include detailed reports of dramatic U.F.O. events abroad. Many cases at home were not investigated, including a 2006 event in which a disc-shaped object hovered over O’Hare Airport for more than five minutes and shot straight up through the clouds at an incredible speed...

See also On the Trail of a Secret Pentagon U.F.O. Program and Breaking a "juvenile taboo" on UFOs.