Yeah on the show they were saying that these beings had been recorded throughout history all described very simmilarly. also this program did not just have americans there were people from all around the world,and as for the drug theory there was a case in south africa where a whole school full of children experienced the same thing and i dont think they were tripping at the time and they were awake.

Personally i also find it hard to beleive that super advanced aliens are consuming massive amounts of energy and travelling thousands or millions of lightyears just to study little old us and then put us back again.Also there are people who report repeated abduction's over their life and my question is why dont they set up cameras or something for the next time they come for them even if they stopped working during the event this would be some evidence of something going on. But then again our understanding of physics is not complete and only a couple of hundred years ago we all were sure that the world was flat and the centre of the universe so who knows