Originally Posted by dr wu23
I"d say that Nigel Kerner theorizes that Greys desire to access and deeply interact with human souls, being soulless themselves. He also explains the hybridization (=creating Grey-Human lifeforms) program, as described by Budd Hopkins and others, could serve to bring ensoulment into the Grey populations, allowing hybrids to work among them.
It is a thoughful theory imo, wu, dad's doing his damnedest to get his 12-year old son the most reliable info possible. I don't know how true all this is, and suspect Nigel's kid will have find out for himself eventually.