I have to agree with the Paranormal Packrat. When Mr. Spencer destroyed the source materials, he, in effect, destroyed his credibility. What could that mean? The dog ate my homework?
I can see wishing to avoid the inevitable multiplication by zero anyone (from Jacques Vallee to the Piltdown Man) faces when addressing the subject of UFOs. You can expect to be humiliated, whether you are Einstein or Tony the Clown. Spencer said, on his Jeff Rense appearance, basically, and I'm paraphrasing, that you couldn't prove the existence of UFOs no matter what your evidence. I agree.
Does that mean he should have destroyed his "source materials"?
Absolutely not. He said he didn't bother contacting a UFOlogist. Well, he should have. And it isn't like they are hard to find. Even the most reputable are easily contacted. They would have done a responsible job of caretaking these relics of history. Why did he not do that? No one would ever have known, if he values his privacy as much as he claims, had he contacted, for instance, Stanton Friedman, requested anonymity, and let Stanton handle the material with the respect it was due. He could have sunk into the black soup of history.
Instead, he makes it a matter of faith. He says verify his facts on Wikipedia. I like Wikipedia as much as the next geek, but as a verification tool?
These were historical documents that were of the late forties era and that alone made them valuable, outside of the UFO issue. Even the most fervent believer in Cosmic Gee-whiz would think about Antiques Roadshow. Why didn't Mr. Spencer?
Now, I realize that my problem with his story might be part and parcel of the humiliation process we subject ourselves to regarding this subject. I don't mean to humiliate Mr. Spencer. If it is humiliating, I apologize.
The problem of proof is where I agree with him. That doesn't mean I pitch the Gettysburg Address in the fireplace. But proof requires system shock. It requires O.H. Krill kicking George Bush out of his seat and taking over his radio broadcast. There is very deep perceptual nullification of this subject matter that cannot be overcome except through massive perceptual shock.