Let me make this short.
I knew the officer in charge of security at the Roswell incident.
Back in the 1970's, long before the movies, he told me he stuck half
his body into a flying saucer, drew it as the one in Independence Day
and saw several child sized grey aliens, dead or dying.
He also claimed to have taken a piece of the wreckage and hid it in the desert.
I believe every word he said, especially as all the documentaries and movies that came out 20 and more years later matched his story very closely.
If what he said is true, then this Doc isn't.