the problem is is that, again, without a large number of troops on the ground, it's hard to create a safe zone like that. and that doesn't solve the isil problem. >> joining us now hillary mann lefrit, under president george w. bush and bill clinton and john on the stevenson at the u.s. naval war kol ledge who worked for the national security council from 2011-2013. jonathan stevenson, so this issue of bombing more, do we have more to bomb? there's a question now of what targets are left after all of this bombing that has gone on for so long already. >> i think that, you know, accelerating bombing and finding more targets is going to be difficult, but one of the reasons that president obama has -- wanted more special forces in with expanded mission to trying to end to find more