A few thoughts after watching this absolutely riveting interview:
a) Charles is a dangerous sociopath. I don't think he'd mind me saying so, either. (After all, what could be worse than a henchman for the Illuminati?)
b) His reason for befriending Bill (i.e. he couldn't "figure Bill out") is, I think, absurd and transparently false. It is just a flattering pretense for some other end, (for example, he may be playing Good Cop to get Bill to behave and/or to frighten him...)
c) That he is somehow representing the Big 33 as a goodwill ambassador is again, likely false.
d) I also don't believe his explanation, if I understood him correctly, that these underground bases are for widespread famine alone. I think he knows that a solar or polar event is immanent and for whatever reason he is playing it down.
Bill, I commend you for your work. I don't doubt that you have considered all the above and I pray that you keep your wits in this chess game, because frankly, we NEED YOU!