The Sons of God and the Daughters of Men

There's a couple of main interpretations of what's going on here, especially with regard to the identification of the sons of God and the daughters of men. One interpretation is that these are rebellious angels who looked down upon the daughters of man and they had intercourse with them. And because of this, God said that he was going to limit the lifespan of humans to 120 years. So I want to get into that more in just a minute, but I want to see if you guys have any in a reaction. If you've had some discussions about these verses or have any insights that I'm going to have, you might not have.