Actually, no he hasn't been replaced, because we've killed most of his successors. And their successors. That's actually what we've been doing over there for more than a decade, and we've done a really good job of it. Following that, we're trying to build infrastructure and a government strong enough to ensure that, once we're gone, a new cancer won't be allowed to spring up where we've just cut the old one out. But tell me (channeling Condescending Wonka here), how again is Israel supposed to prevent the rise if militant, terrorist Islamist groups in Afghanistan again? Right, so if you picked up a neurophysics textbook that someone left laying around, you'd know exactly what you were reading...