As a result of the continuing accumulation of more impressive UFO reports, official interest stirred. Early in 1951 verbal orders came down from Major General Charles P. Cabell, then Director of Intelligence for Headquarters, U.S. Air Force, to make a study reviewing the UFO situation for Air Force Headquarters.

I had been back in the Air Force about six months when this happened. During the second world war I had been a B-29 bombardier and radar operator. I went to India, China, and later to the Pacific, with the original B-29 wing. I flew two DCF's, and some Air Medals' worth of missions, got out of the Air Force after the war, and went back to college. To keep my reserve status while I was in school, I flew as a navigator in an Air Force Reserve Troop Carrier Wing.

Not long after I received my degree in aeronautical engineering, the Korean War started, and I went back on active duty. I was assigned to the Air Technical Intelligence Center at Wright-Patterson Air Force Base, in Dayton, Ohio. ATIC is responsible for keeping track of all foreign aircraft and guided missiles. ATIC also had the UFO project.

I had just finished organizing a new intelligence group when General Cabell's order to review past UFO reports came down. Lieutenant Colonel Rosengarten, who received the order at ATIC, called me in and wanted to know if I'd take the job of making the review. I accepted.

When the review was finished, I went to the Pentagon and presented my findings to Major General Samford, who had replaced General Cabell as Director of Intelligence.

ATIC soon got the word to set up a completely new project for the investigation and analysis of UFO reports. Since I had made the review of past UFO reports I was the expert, and I got the new job. It was given the code name Project Blue Book, and I was in charge of it until late in 1953. During this time members of my staff and I traveled close to half a million miles. We investigated dozens of UFO reports, and read and analyzed several thousand more. These included every report ever received by the Air Force.

For the size of the task involved Project Blue Book was always understaffed, even though I did have ten people on my regular staff plus many paid consultants representing every field of science. All of us on Project Blue Book had Top Secret security clearances so that security was no block in our investigations. Behind this organization was a reporting network made up of every Air Force base intelligence officer and every Air Force radar station in the world, and the Air Defense Command's Ground Observer Corps. This reporting net sent Project Blue Book reports on every conceivable type of UFO, by every

What did these people actually see when they reported that they had observed a UFO? Putting aside truly unidentifiable flying objects for the present, this question has several answers.

In many instances it has been positively proved that people have reported balloons, airplanes, stars, and many other common objects as UFO's. The people who make such reports don't recognize these common objects because something in their surroundings temporarily assumes an unfamiliar appearance.

Unusual lighting conditions are a common cause of such illusions. A balloon will glow like a "ball of fire" just at sunset. Or an airplane that is not visible to the naked eye suddenly starts to reflect the sun's rays and appears to be a "silver ball." Pilots in F-94 jet interceptors chase Venus in the daytime and fight with balloons at night, and people in Los Angeles see weird lights.

On October 8, 1954, many Los Angeles newspapers and newscasters carried an item about a group of flying saucers, bright lights, flying in a V formation. The lights had been seen from many locations over Southern California. Pilots saw them while bringing their airplanes into Los Angeles International Airport, Air Force pilots flying out of Long Beach saw them, two CBS reporters in Hollywood gave an eyewitness account, and countless people called police and civil defense officials. All of them excitedly reported lights they could not identify. The next day the Air Force identified the UFO's; they were Air Force airplanes, KC-97 aerial tankers, refueling B-47 jet bombers in flight. The reason for the weird effect that startled so many Southern Californians was that when the refueling is taking place a floodlight on the bottom of the tanker airplane lights up the bomber that is being refueled. The airplanes were flying high, and slowly, so no sound was heard; only the bright floodlights could be seen. Since most people, even other pilots, have never seen a night aerial refueling operation and could not identify the odd lights they saw, the lights became UFO's.

In other instances common everyday objects look like UFO's because of some odd quirk in the human mind. A star or planet that has been in the sky every day of the observer's life suddenly "takes off at high speed on a highly erratic flight path." Or a vapor trail from a high-flying jet -- seen a hundred times before by the observer -- becomes a flying saucer.

Some psychologists explain such aberrations as being akin to the crowd behavior mechanism at work in the "bobby-sox craze." Teen-agers don't know why they squeal and swoon when their current fetish sways and croons. Yet everybody else is squealing, so they squeal too. Maybe that great comedian, Jimmy Durante, has the answer: "Everybody wants to get into the act." I am convinced that a certain percentage of UFO reports come from people who