joining me now to discuss, president obama's plan stephen hadley former national security adviser toeorge w. bush and sandy burger security adviser to president clinton. thank you for joining us. sandy, let me start with you, that basic question to degrade and destroy isis, the idea of destroying, just defeating isis, so it doesn't exist anymore. realsistically is that possible? >> it's not possible in the sense that you're going to eliminate every member of isis and obviously it's a dynamic organization. i think defeating means eliminating their ability to really be a threat to the region and to ourselves. shrinking the area in which they have control, diminishing their leadership, and in my view, strengthening the indigenous local forces sufficiently that we would have much less of a role. >> steven, let me ask you, because obviously, you know, the bush administration alum and people think of the middle east and the bush administration, and obviously it's the iraq war. in one of the stories of the iraq war, you have a strong feeling of how it turned out ultimately that might be dif