31 дек 1953 г. - Dec 1953 Letter from USAF HQ rep (who secretly collaborated with Donald Menzel, pictured) to Air Defense Command (ADC) "there is a 10-20% area of unexplained objects...we would like to offer you guidance in the publicity angle...for those times where the object is not explainable...say... 'The information on this sighting will be analyzed by ATIC at Dayton, Ohio,' and leave it go at that. If your people get into analyzing the 10-20% area to the public, every news media will pick up the story"
Описание:
https://www.amazon.com/UFOs-National-Security-State-Chronology-ebook/dp/B0C94W38QY?dib=eyJ2IjoiMSJ9.GA0HJz5rg1XI1vhQTilun3PP3ZJPcdqJIGvqPqjftiw.Jz6jNNopiAivpCNB-tW5t5AeYDzvdvjjWfXxpdnz9a0&dib_tag=se&keywords=UFOs+and+the+National+Security+State%3A+Chronology+of+a+Coverup%2C+1941-1973&qid=1734726610&s=books&sr=1-1Perry 1953; Good 1988, 279; U.S. Air Force 1955.
https://en.wikipedia.org/wiki/Donald_Howard_Menzel
https://nap.nationalacademies.org/read/6061/chapter/11#149
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31 дек 1953 г.
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~ 71 г назад