In January 1979, The New York Times reported that despite repeated, feverish denials, the CIA had indeed investigated the UFO phenomenon. The report is said to have so upset the then CIA director, Stansfield Turner, that he reportedly asked his staff: Are we in UFOs?" The answer was yes. This year a raft of newly unclassified CIA documents revealed that the remote possibility of alien invasion elicited greater fear than the threat of a Soviet nuclear attack. The subject of UFOs ... not only focused the attention of the US government elite for 50 years, but of some of the greatest scientific and military minds of the era. The CIA documents show that despite decades of repeated public denials, behind the scenes there raged a series of inter-agency feuds that involved the highest levels of the US government. UFO files cover everything from "flying saucers over Belgian Congo uranium mines" to Nazi "flying saucers". A 1953 memo shows that the physicist John Wheeler, while critically involved with Edward Teller in the creation of the hydrogen bomb, was available to the "CIA attack on the flying saucer" problem. A secret 1995 report was titled: CIA's role in the study of UFOs 1947-90: a diehard issue. Written by Gerald Haines, the CIA's National Reconnaissance Office historian, its detailed summary of CIA involvement inadvertently undermined its "UFOs-don't-exist" conclusion. Although the air force was the agency given the task of investigating UFOs from 1948 onwards, the CIA remained deeply involved. Some of their highlights, quoting directly from the documents, include: "[Since] 1947 there have been about 1500 official reports of sightings and [of these] the air force carries 20 per cent as unexplained."