Some of you guys aren't taking this seriously enough.
When I look at the reported sightings, it does make me wonder, military, astronauts, etc. They have been drawing pictures of "space aliens" for thousands of years.
And the point is?
If they been visiting us for thousands of years than there technology is has advance beyond our comprehension. It been like Cavemen throwing stones at a Predator Done Armed with Hellfire Missiles.
They have faster than Light Speed Drives or Generational Ships to across the vast distances, yet they always seem to be sighted by some "bubba" or someone wanting to sell a book or a story. Seem to me with there technology they could do most if not all observations directly from space without being sighted. Just look at what we can do with our limited remote sensing technology.