absent pressure on russia an on syria from washington and the other major powers in the world, this carnage is unfortunately going to continue. dana: do you have an opinion on whether the president has all the authority that he needs under the constitution or under the 2001 authorization to use military force if he were to take action? or do you think congress needs to act to provide him more leeway? i think it would be useful for congress to step forward and provide a new authorization. generally both with regard to some of the isis branchs around the world. we re a long way from someone as an authorization after the 9/11 at tack. i think it s useful for congress to step in. and the authority vis a vis regime is not at all clear. the president invoked his powers when he used missiles last year after a syrian chemical attack. dana: we ll see what happens.