I'd have to say my favorite scene this year by far is the touching scene between Alt. Jack and Alt. Locke at the airport. After watching the episode again, I definitely think there is a deeper meaning to the "How could they know where he is?" line that he says to Jack about Christian, clarifying that just because the body is lost doesn't necessarily mean that his soul or whatever you want to call it is gone. I think that this is a metaphor for Locke in that no one really knows where the real John Locke is and that just because his body is lying lifeless in the sand doesn't mean that the real Locke's soul is gone forever. Let's hope this is the case and his tragic life can be redeemed.