it brought the world's most powerful nations together, the united states, germany, the united kingdom, france and china and russia were now all determined to stop iran from getting a nuclear weapon. there were fits and starts, talks and negotiations, but little progress to show until 2013, anna suspicio auspicious year the team would crack the toughest issue in world politics all came together. >> so help me god. >> congratulations, mr. president. >> it was the year president obama was inaugurated for the second time. >> what are your thoughts at this time? >> and john kerry, a vietnam war vet, an advocate of diplomacy took office as the new secretary of state. it was the year that the relatively moderate rohani was elected the seventh president of iran. >> we are all endowed with freedom. >> and name the american