Gorman fought a lighted balloon too. An analysis of the sighting by the Air Weather Service sent to ATIC in a letter dated January 24, 1949, proved it. The radioactive F-51 was decontaminated by a memo from a Wright Field laboratory explaining that a recently flown airplane will be more radioactive than one that has been on the ground for several days. An airplane at 20,000 to 30,000 feet picks up more cosmic rays than one shielded by the earth's ever present haze. Why can't experienced pilots recognize a balloon when they see one? If they are flying at night, odd things can happen to their vision. There is the problem of vertigo as well as disorientation brought on by flying without points of reference. Night fighters have told dozens of stories of being fooled by lights. One night during World War II we had just dumped a load of bombs on a target when a "night fighter" started to make a pass at us. Everyone in the cockpit saw the fighter's red-hot exhaust stack as he bore down on us. I cut loose with six caliber-.50 machine guns. Fortunately I missed the "night fighter"--if I'd have shot it I'd have fouled up the astronomers but good because the "night fighter" was Venus. While the people on Project Sign were pondering over Lieutenant Gorman's dogfight with the UFO--at the time they weren't even considering the balloon angle--the Top Secret Estimate of the Situation was working its way up into the higher echelons of the Air Force. It got to the late General Hoyt S. Vandenberg, then Chief of Staff, before it was batted back down. The general wouldn't buy interplanetary vehicles. The report lacked proof. A group from ATIC went to the Pentagon to bolster their position but had no luck, the Chief of Staff just couldn't be convinced. The estimate died a quick death. Some months later it was completely declassified and relegated to the incinerator. A few copies, one of which I saw, were kept as mementos of the golden days of the UFO's. The top Air Force command's refusal to buy the interplanetary theory didn't have any immediate effect upon the morale of Project Sign because the reports were getting better. A belated report that is more of a collectors' item than a good UFO sighting came into ATIC in the fall of 1948. It was from Moscow. Someone, I could never find out exactly who, reported a huge "smudge- like" object in the sky. Then radar came into the picture. For months the anti-saucer factions had been pointing their fingers at the lack of radar reports, saying, "If they exist, why don't they show up on radarscopes?" When they showed up on radarscopes, the UFO won some converts.