Maybe there is no UFO!

This intelligence assessment, dated December 22, 1967, reports on the Soviet Union's formal efforts to investigate unidentified flying objects. In November 1967, the Soviets established a committee for this purpose under the auspices of DOSAAF, commanded by Air Force Major General Porfir Stolyarov. The investigation was designed to utilize photographic methods, with data correlation provided by the Pulkovo Astronomical Observatory and the Crimea Astronomical Observatory, supported by a network of astronomical observatories and civil aviation. The document further explores historical UFO reports, noting that the phenomenon has been observed throughout history. A significant portion of the text is dedicated to the 'Tunguska meteorite' event. It references a 1967 study by Vladimir Khekhedov from the Joint Institute of Nuclear Research at Dubna, which concluded that the Tunguska blast left residual radioactivity. Additionally, it mentions studies by Alexei Zolotov that attempt to argue the Tunguska body was not a meteorite or comet, but rather an artificial craft from another planet, citing a 1966 analysis of the body's flight path. The document concludes by suggesting that if these findings are confirmed, they present new problems for humanity, necessitating a global, calm, and scientific approach to the subject, emphasizing the importance of international cooperation.