Apocalyptic events . . . Remember the event foretold by Rambaldi? The one that coincided with a) the CIA/NSA's recovery of the Di Regno heart and Sloane's revelation concerning a Rambaldi manuscript? Which was the apocalyptic event? Both were part of the same apocalyptic event. Sloane re-upped to the Rambaldi obsession at this time, turning his path back toward, one guesses, conquest and power. Meanwhile, the NSA's control of the heart a) delayed Irina's control of it, allowing Sloane to come back into the game and b) caused Irina to look for a way to force the heart into the open, where it was hijacked along with Jack. And I think that the fact that Jack was taken with the heart may turn out to be one of the most critical of all the pieces of this puzzle. Everyone seems to assume that Sydney's "burning anger" will probably have something to do with Vaughn--but I think it's more likely that it will have something to do with her long-suffering father. (If my insane spec below holds water, it would tend to back up this interpretation . . .)