Lots of meat on this bone..
This is the continuation of the tale told by Corso in "The Day After Roswell."
https://en.wikipedia.org/wiki/The_Day_After_Roswell
The articles are more about bureaucratic "deep state" secrecy, operations and malfeasance than about the actual "alien materials."
The attitude seems to be what benefit can be derived from the windfall of acquiring extraterrestrial technology than in assessing our risk, where do these being originate from and learning about the beings themselves...
Ronald Reagan during his tenure in the WH at the beginning of a press conference said, "What would all our geopolitical squabbles mean if I were to tell you that we are at war with... (as he pointed a finger upwards)."
Then again the Machiavellian might think what does the recent AF Ad at the front of the recent Top Gun movie mean, that stated other nations might rule the ground or the seas but the USAF owns the sky... coupled with the recent DOD revelations about UAP's. Are these subtle geopolitical hints that the US has some things tucked away in the closet? The USA has had the where with all (money, talent and scope) to utilize other technologies that other nations didn't posse for decades...
It doesn't do me any good to advertise who I am anymore..