The Nephilim.
I don’t think we’ve seen the last of them either.
Guessing you have read Sitchin’s books “The 12 th. planet” and the rest of his books, interesting stuff
Actually, I learned this from comparing Chuck Missler's bible Studies to scripture. Chuck Missler is a respected minister in the Body of Christ (he is tied to such well-regarded leaders as Chuck Smith). I'm not familiar with Sitchin but here's a link to Missler's web site & Bible studies. Some great expository teaching you can listen to online. His series in Genesis is really good and lays the groundwork for this incredible "Nephilim" issue.
http://www.khouse.org/6640_cat/biblestudy/