Here's a good video interview published yesterday re: this subject...
Ross Coulthart | UFO Disclosure, Admirał Wilson Leaks, Crash Retrievals, Congress & More
“the military (the Air Force specifically) took it to determine if it had any value re: national defense.”
That is generally true.
However, we now know for example in the Trinity case, that it was the Atomic Energy Commission that seized and hoarded the information.
The whole notion of “national defense” in this context is a caricature of human stupidity.
If these things are a risk to one country they are a risk to all—there is nothing “national” about it!
I mean, who are we alerting with this evidence, aliens not from this earth? If they exist, i suspect they know they exist, don't you? 🙂