Metatron:
I don't trust information that comes out of peoples heads a half century after the event. Especially, someone who played the cover up game.
I don't even trust my own mind with things that happened 30 years ago. If you are an eye witness to something unusual you need to write it down and somehow date stamp it. Our minds love interesting stories and with each retelling we tend to embellish the facts based on our listeners reaction.
That's why debriefing immediately after an event is so essential.
Those who use the argument that space is so big and it would take sooooo long to come here and it would use so much energy etc. Need to think about the possibilities that a "multiverse" allow. There may be an infinite number of worlds at the tip of our fingers. The technology for creating a gate may be fairly simple.
Just like electricity. Who would have thought that by spinning a coil of wire next to magnets you could generate electricity. It hasn't even been 200 years since that was discovered. Look at the changes that ensued. Dimensional jumps may be fairly routine. If there really were some sort of UFO crash I would think it some interdimensional extraterrestial tinkerer experimenting in his garage.