Could you point me to any UFO wistleblower from govenment, military, science, etc. areas that revealed exact technical details about UFO. I mean really technical - not somehing like "it could hover silently!" or "It could turn at 90° at high speed!" or senseless drawings or descriptions of exterior or interior. Something like exact weight, power source output in Watts, maximum thrust in kN, something like "Power source connected to the engine with a cable/pipe/whatever with diameter/cross-section of ... <- exact value"? Anything like that?
First thing that engineer, scientist, military will do with unknown technology is to measure it. And it is not about dimentions, it is about all possible parameters. Also he definitely will try to find and write out distinct parts interconnections and think out a way to categorise different distinct parts, even if he have no clue what it is and how it works. And that are the things that any real whistleblower from aforementioned institutions will wistleblow. They just can't be unaware of that things if they really tried to use, work on, reverse engineer or study that UFOs.
What I find very suspisious, apart of complete absense of known technologies that appeared from nowhere without any traces of preceding technologies, is that there are no any technical details about UFOs governments presumably possess from any known to me wistleblower.
I heard that bullshit millions of times.
"Someone, who have greatest information in the world announced that he will reveal it in two weeks was killed"
That is not how things done. If you have such information, you spread it everywhere, in every social network, on every torrent tracker, in every p2p network, send it to every paper in every country. And you publish that information in raw form or, in case of invention, as complete, reproduceable description. And you don't inform your enemy about that beforehand.
Enough with that bullshit. Nobody could stop important and truthful information today if one really want to wistleblow it, not play some stupid games telling stupid tales for whatever reason.
Also there is absolutely zero chance that something really leaked without any apropriate details, only as some stupid tale that tells nothing exact. Even lowest tier person inevitably will leak something really technical along with his story if he really have access to something like UFO.
I have some examples of succesful leaks of that type. DeCSS code, PGP encryption, tons of cracked software, drawings and circuits of different devices that allow cheap repair, ways to hack them or circumvent some vendor protection and so on. All that cost billions to those who definitely didn't want this information out. And none of those who did it was killed, at least as far as I know. Mostly they are still anonymous, but that does not make their information less useful or truthful, because you could just take and really use it for your own purpose. People just do the stuff and release it without stupid announcements, funds, MSM interviews and all that insane garbage.
For at least 30 years, any person involved in UFO study could easily wistleblow anything he know without any problems if he decide to do so and be perfectly alive.
To study such complex objects you need insane number of people with knowledge in a lot of different areas. It is impossible that during all last 30 years none of them leaked anything, knowingly or not.
Nuclear weapons secrets didn't survived even few years. In less than 10 years that secrets was in textbooks for students.
And UFO is much more complex thing than atomic bomb, so the number of scientists and engineers involved will be orders of magnitude larger than for nuclear weapon program.
There is zero chance that some technical details did not leaked one way or another since 1947 if government possess alien spaceship and reverse engineer it.
So, there should be something, or governments just do not possess any UFO or possess them but strongly prohibit any study and even more so reverse engineering of it.