'Greys' ? ..

[personalreality]

And Nephilim doesn't necessarily imply "spawn of demons".  They are they spawn of humans and Annunaki, "those who from heaven to earth came", which could be aliens or gods, your choice.

In some writings they were considered to be reckless perhaps, but not the spawn of demons.

[The Doctor]

I guess my information is sketchy at best. But yes, you are quite right.

[CFTraveler]

Here's some info.
http://www.abarim-publications.com/Meaning/Nephilim.html

[Everlasting]

Every person is a corporation and every corporation is a person, that's the law.  That's why the Gov. have power over you.