for more on all this, i'm joined by kim lawton, managing editor of this program, and george lopez, a professor at the kroc institute for international peace studies at the university of notre dame. george, welcome. would you sum up the major issues involved here. >> the major issues, a public evil with a chemical weapons attack. on criteria of last resort, proportion the response, probability of success, this strike idea really falls short of the mark. >> there's a lot of talk of we have a responsibility to protect in the international community when civilians are facing grave crimes. where does that play into all of this? >> well, it gets very close, kim, to the last resort criteria in just war theory and that is, are there a number of other economic, diplomatic steps that be taken short of the use of military force and there certainly are, particularly with putting more inspectors on the ground and more demands to the assad regime to turn over those responsible for these attacks. they haven't been resorted to. >> if we had not attacked, if we did not attack, george, would that be a