Charles' lesson to Ben about insider anarchy was actually a huge part of the hippie "revolution" back in the 60s-70s. Overthrowing from within was the message of the "New Left", as illustrated in Abby Hoffman's S.D.S. propaganda publication "Steal This Book". It's also woven into the "V For Vendetta" story. As Koreambear mentioned on EyeMSick, I also wonder if Amy was one of these double-agent plants in DI-ville, which could be how Ethan became an Other so young. Or was it just a case of an angry young man growing into an angry older man?
It was interesting how Widmore predicted Ben's eventual banishment. It could have been just a macho version of a parting shot, but Wid seemed to have a bead on Ben's personality from the beginning, illustrated in their continual clashes over protocol, etc.
I was very happy that Ben didn't shoot any members of Our Mutual Family! Let's hear it for bulletproof groceries, and the power of mothers and children on Ben's psyche. Then, Daddy to the rescue!
I really don't like Ilana (as a person, not a character), and I can't say that I'm sorry that we probably won't be seeing Caesar anymore. Because, dead is dead, right? Hmph, who put them in charge?! But for now I'm guessing that Ilana is most likely a part of Widmore's second-wave assault and that mega-trunk is filled with their artillery. But would the Others and the DI both have used riddles? Or had Radzinsky gone over to the Dark Side by the time he was stuck with Kelvin in his beloved Swan? That would be the kind of twist that TPTB would throw at us, but we'll have to wait and see as usual. And by the way, was that Ben's desk that Caesar pulled the hidden sawed-off shotgun out from under?! Not so corporate John, and you're still not seeing more than what's only before yours eyes.