Do you think aliens in ufos have visited Earth? (And all things UFO)

There is just too much witness testimony out there for there to not be something going on. If we have the technology to create craft like the one Fravor encountered, then we should be ruling the world. The craft he encountered went from a standstill, just above the water, to just past the Karmen Line in seconds, then back to atmosphere. It not only maneuvered radically, it parked itself on his CAP point. That's a classified position used by the aircraft and their controller. Conicidence? In the vast area they were operating in? I highly doubt it.

Here is my theory....yes we have been visited in the past, yes we recovered wreckage and bodies. There have been very few visitations in the past 50 years, we are not a vacation spot. The sightings have been experimental craft reverse engineered to a degree by us. Some of the craft sighted are actually unmanned, some are piloted by human test pilots.

I think the information regarding all this is very compartmentalized between govt agencies and private corporations. It's easier to keep a huge secret when you have people guarding it. Clinton was caught with his intern because there was no person there whispering in her ear that she would be dead by morning if she said anything about it. They don't even need to threaten their life. Look at the stigma given this topic. You think a physicist would come out with the truth if his reputation was destroyed? Look at what happened to Bob Lazar. I've always been skeptical that we learn all the truths that have to do with these cover ups because it would mean prison sentences for a lot of highly placed people.