Empire 20 Years On

CNN's John Defterios asks a few questions about the book Empire 20 years on. He also wants to get a sense for your work in a more broad sense as well, because he hasn't had the chance to delve into it. And if you're willing to and would be open to that, we might draw from your prior work just to see like, what's the sort of undergirding theory that propelled you to write this?