advance, quote, swiftly and seriously, and the u.s., britain, france and germany are being joined by russia and china in urging talks with iran. joining me from washington is former secretary of state p.j. crowley. good to see you. >> hello, alex. >> any indication that diplomacy and sanctions will actually work? do you think iran is serious this time? >> that's what we're going to find out next month. there will be a first round of talks with iran in more than a year. i don't know that this first round of talks will necessarily be successful. i think there's still quite a gap between iran and the west. what i think the united states will be being looking for as well as the other participants with the p-1 plus-5 process is the sustained dialogue. before we've had one or two meetings and things have stalled for one reason or another. this conversation was very complex and it's very difficult, and it needs to take place over a long period of time so whether