Loring AFB, Maine, about 1970, one of the bases overflown by unidentified objects in 1975 Unknown author (Library of Congress, HABS/HAER), Public domain, via Wikimedia Commons
Air Force and NORAD records released under FOIA describe unidentified, low-flying objects, often likened to helicopters, over Loring, Wurtsmith and Malmstrom bases in late October and November 1975. Pursuit efforts failed; the Washington Post reported the files in 1979.