i'm coming back to you for the moment, joshua landis. the campaign, the idea that air strikes alone, which is what president obama has been saying, no u.s. boots on the ground, that we can... that the u.s. can degrade isis, and one assumes that's the same view when it comes to the khorasan group? >> right. well, you know, andrew is right. the united states needs to partner with somebody because you can bomb isis, but you need an army on the ground that is pro american, that's going to bring better government to this region, that can move in and take these towns away from isis as they're bombed. that puts america in a very complicated position. the united states has not really wanted the rebels to win a military victory in syria. and today the rebels are saying, arm us, arm us, we'll take on isis, but assad is our real target. and america has to figure out how to get the rebels on board, to attack isis, without destroying damascus and many cities where syrians still live in their apartments and drive cars and get some benefits from the st