People have been convicted to death for much much less.
The project Mogul stuff is bunk. The documents show the project mogul experiments didn't happen until a couple years LATER.
The FAA witnesses have a plethora of tapes that recorded the radar returns.
Eye witness reports are not "here-say" you might like to study law terminology little more.
Either way, skeptics will never been convinced until an alien lands on their door step... even then a skeptic will say, "prove you are an alien from some other planet... otherwise I'm just going to assume you don't exist or are just some genetically modified human with awesome technology."
On the other hand there are people who will believe anything you tell them. I try to stay somewhere in the middle. If you take the time to investigate the evidence, it's abundantly clear there is some "alien" presence. As to it's nature that's another question.