mutual cooperation on different regional issues. >> presumably syria being a huge regional issue, where these two countries strongly disagree. >> absolutely. but there are issues, and you see this very quickly, where all of this window dressing, though important and particularly this direct contact between the presidents, extremely important today, and promises the possibility of real progress, you still have other issues where we don't agree. the iranian president was asked this morning about iran's support for terrorist groups, and he didn't back off from that support. groups like hezbollah, that the u.s. blames for attacks for instance, one that killed 50, 60 some odd people. as you're starting this process, you know we have an opening here but you still have many disagreements that are going to take -- that may not be settled, frankly, as we're watching this progress move forward. >> a handshake didn't happen on tuesday but john kerry meets with the iranian foreign minister on thursday and today, the president makes a phone call to a departing president of