let me start with alan dershowitz. do you buy this stuff? do you believe that assad will willingly turn over the chemical weapons and then somehow or other the u.n. is going to destroy it? >> no, i don't believe it any more than that iran would turn over its nuclear weapons. iran which runs syria has repeatedly invited delay by saying it would do things that it never did. on the other hand, if it were to happen, it would be the best possible solution. it would get the chemical weapons out of syria. so i think it should be given a chance. that congress ought to now authorize a new red line and if in fact syria violates that red line, the president will already have authority to take whatever military action he deems proper. i think that combination might produce -- >> what's the new red line? do you mean congressional authority for military action? >> yeah, the new red line would be if syria were to use chemical weapons again, if it were not to turn them over, if we were to decide this was a delaying tactic, then he already has the authority.

and alan dershowitz, author of "taking the stand, my life and the law."ssor, let me start with you. you say the administration has to be tough and send a message to iran. you sent a tweet that caught my attention. this is what it said, obama, get approval from congress on iran now. that's a pretty incredible statement. why do you think he should get a congressional approval for military action there now? >> first of all, iran involves international security to a far greater extent than syria. syria was largely humanitarian, chemical weapons are not weapons that really endanger the united states. but nuclear weapons are a game changer. they provide iran an umbrella. they might hand some of those weapons over to terrorists. if the president will seek congressional approval before he acts, it would be too late to seek congressional approval after iran developed nuclear weapons the way he's seeking after syria has used chemical weapons. so the only logical thing is to seek approval in advance. that would send a powerful message to the iranians and prevent the