I did mention I used the word allegedly. That means it may not be factual per say. I explained where I got the information from and no it's not rude to ask for some form of justification to what you see as an extraordinary claim. I can't give that. I went part way to explain why.
You found that paper in a three minute search on Google. Firstly, Google is highly censored and the search results will be highly limited. Secondly, classified and or declassified information is not so easy to find. Thirdly, quite often I find information from one source is confirmed by other sources that may not be entirely internet based but have some aspects may be internet based. Fourthly, along with many researchers, investigative journalist, university students, etc, I use the dark web simply because it's not indexed. I am definitely not going to post any link to that and fifth, some of what I read or watch, etc, is in with political content so I'm not going to post a link to that either as per forum rules.
Anyone can do their own research.
So it's all bogus and nonsense. How exactly do you know for certain that is so without seriously looking into it? Also, define a credible source? I'm not intending to be rude by asking that. Frequently, many say ta view point is rubbish having done no proper research but simply go by what Google gives them as a search result, what the MSM tells them and by what they think is so. Very few can simple say I don't know if that is true or not.
With all things Fortean and paranormal, there is no proof. There is discussion, research, enquiry, view points, consensus or not, and so on. For instance amongst other subject matters, I really enjoy all things time slip. Again there is no proof. No link can give a definitive answer and we all accept that. Yet with some other subjects, that principle goes out the window and it becomes, to quote your words, bogus and nonsense. Again I have no desire to sound rude. Far from it. I just can't find better words to be more diplomatic and that is my failing. My point is that maybe we need to apply the same rules to other subject matters that are not Fortean or paranormal and look into them in a similar manner.