He said that the original story broken by his father was true--it was a UFO--and all subsequent stories (balloons, etc.) were smokescreens.
It seems unusual to me that we have mountains of Apollo equipment on hand; yet, young people believe it made trips to the moon based entirely on witness accounts of astronauts, who are mostly dead now. The faith that those landings occurred is clearly rooted in the witnesses rather than the hardware. On the other hand, UFO crash/retrieval reports are also brought by a larger number of reliable first hand witness, many whom are still alive; yet, hardware is demanded in order to believe the reports.
This is a most assuredly a psychological difference based solely upon preconceived belief systems.