Your right Bill. Sorry for coming off as an insane person (of sorts) Of course I see the petroglyphs as a history of chiefs wearing feathers, it's just those other drawings that facinate me.

The way I look at this,
When people ask where are they now,

The aliens used to be revered as gods. People thought they were powerful and reverent. Now we look at them as aliens and only want to try to figure out what the hell they want with us.
Are we going to find out and relate? Yes I think so, as long as our government doesn't try to destroy an incoming.
Wait, maybe that's why they are leary now-a-days. Our people are freaking out and try to stop any incoming. (Ha!)