how?
“”The Roswell Incident, for example does sound believable, but it has been shown that it was not a UFO that crashed in the desert”
“how?”
Overwhelming evidence to the contrary:
http://www.roswellfiles.com/storytellers/KentJeffrey1.htm
Hasn’t been shown to be so.
Some clueless idiots, including one who formerly knew better, just claim such nonsense.
There’s plenty of mystery left. However, the basic facts are pretty well extensively documented. Some key ones, by a famous FREEPER.