Iran's been trying to settle the impasse over its nuclear programme ahead of the nation's upcoming address to the UN General Assembly. The country's foreign minister will join negotiations with the six world powers later this week. The stand-off has dragged on for years, and now the country's new leader Hassan Rouhani pledged to re-start peace talks in return for an easing of painful sanctions. To talk more about Iran's diplomatic turnaround RT is joined by John Limbert - a veteran US diplomat who was taken captive by revolutionaries in the 1979 Iran hostage crisis, and then later served as US deputy assistant secretary of state for Iran.
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