In the airport, Jack and Locke are in the baggage office. Turns out, the airline lost Locke’s suitcase full of knives. Well, that’s another thing that was definitely on the original Flight 815. So the out-of-place Desmond disappeared, as did the correctly placed knives and the body of Christian. I am not sure what to make of that yet. It is a really nice scene, showing an affection between the two that disappeared a long time ago in the original timeline. Jack even offers Locke a consultation to see if he can fix his back. You know, the fact that there’s another Locke who’s alive and well(ish) makes me feel a lot better.
