🇺🇸 CIA
This document is a letter from the CIA addressed to Major Donald D. Keyhoe, director of the HSCS (Human Security Committee). In the letter, official J. S. Dunn thanks Keyhoe for a prior letter and explains that the subject has been referred to the Department of the Air Force for an appropriate response. The letter is dated April 1958 and shows how the CIA handled inquiries about unidentified aerial phenomena. The document also includes internal distribution information and a release approval for the public in 2010.