(B) FLYING DISCS—The Bureau, at the request of the Army Air Forces Intelligence, has agreed to cooperate in the investigation of flying discs. The Air Forces have confidentially advised that it is possible to release three or more discs in odd numbers, attached together by a wire, from an airplane in high altitudes and that these discs would obtain tremendous speed in their descent and would descend to the earth in an arc. The Army Air Forces Intelligence has also indicated some concern that the reported sightings might have been made by subversive individuals for the purpose of creating a mass hysteria.
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7-30-47
BUREAU BULLETIN No. 42
Series 1947
You should investigate each instance which is brought to your attention of a sighting of a flying disc in order to ascertain whether or not it is a bona fide sighting, an imaginary one or a prank. You should also bear in mind that individuals might report seeing flying discs for various reasons. It is conceivable that an individual might be desirous of seeking personal publicity, causing hysteria, or playing a prank.
The Bureau should be notified immediately by teletype of all reported sightings and the results of your inquiries. In instances where the report appears to have merit, the teletype should be followed by a letter to the Bureau containing in detail the results of your inquiries. The Army Air Forces have assured the Bureau complete cooperating in these matters and in any instances where they fail to make information available to you or make the recovered discs available for your examination, it should promptly be brought to the attention of the Bureau.
Any information you develop in connection with these discs should be promptly brought to the attention of the Army through your usual liaison channels.
Stamped:
RECORDED 78 AUG 4, 1947