Almost exactly a month later another UFO did appear, or at least at the time the camera crews thought that it was _a_ UFO. This time the crews were ready--when the call went out over the telephone net that a UFO had been spotted, all of the crews scanned the sky. Two of the crews saw it and shot several feet of film as the shiny, bright object streaked across the sky. As soon as the missile tests were completed, the camera crews rushed their film to the processing lab and then took it to the Data Reduction Group. But once again the UFO had eluded man because there were apparently two or more UFO's in the sky and each camera station had photographed a separate one. The data were no good for triangulation. The records at ATIC didn't contain the analysis of these films but they did mention the Data Reduction Group at White Sands. So when I later took over the UFO investigation I made several calls in an effort to run down the actual film and the analysis. The files at White Sands, like all files, evidently weren't very good, because the original reports were gone. I did contact a major who was very co- operative and offered to try to find the people who had worked on the analysis of the film. His report, after talking to two men who had done the analysis, was what I'd expected--nothing concrete except that the UFO's were unknowns. He did say that by putting a correction factor in the data gathered by the two cameras they were able to arrive at a rough estimate of speed, altitude, and size. The UFO was "higher than 40,000 feet, traveling over 2,000 miles per hour, and it was over 300 feet in diameter." He cautioned me, however, that these figures were only estimates, based on the possibly erroneous correction factor; therefore they weren't proof of anything--except that something was in the air. The people at White Sands continued to be on the alert for UFO's while the camera stations were in operation because they realized that if the flight path of a UFO could be accurately plotted and timed it could be positively identified. But no more UFO's showed up. One day Lieutenant Cummings came over to my desk and dropped a stack of reports in front of me. "All radar reports," he said, "and I'm getting more and more of them every day." Radar reports, I knew, had always been a controversial point in UFO history, and if more and more radar reports were coming in, there was no doubt that an already controversial issue was going to be compounded. To understand why there is always some disagreement whenever a flying saucer is picked up on radar, it is necessary to know a little bit about how radar operates.