You do realise it isn't 2003 anymore, right?
Kagan and Frum (and their mates) have been around since then and, as you see, they're still around now. As I say, the problem facing them--the last problem as they see it--is the prospect of a nuclear weapon controlled by the Ayatollahs. They see that as what they call "an existential threat," not without reason tbh. They'll be around until they achieve their objectives.