rafael grossey. ah with i'm dorset jibari in vienna. iran the u. k. france, germany, russia and china have resume talks in the australia capital a me to revive the 2015 joint comprehensive plan of action or the iran nuclear deal . the united states is participating indirectly, after withdrawing from the agreement 3 years ago. but there is another important party involved in the diplomatic efforts, and that's the international atomic energy agency, or i. e. as part of the un, the nuclear watchdog has kept dialogue and negotiations ongoing with all parties involved. but as tensions and disagreements on key issues remain unresolved, what would it take for the negotiations? the j. c. p. a way to succeed? and if they fail, what's next? stay with us. as the director general of the international atomic energy agency, rafael marianna grossi talked to al jazeera director general of the international atomic energy agency, rafael marianna grossi, thank you for talking to l. just my pleasure. good to see you. what do you think is the role of the a within the uni