Ali Asghar Soltanieh - Iran's ambassador, International Atomic Energy Agency
Iran's nuclear power programme has been a source of international tension for the past decade. At no point has it been able to shrug off the suspicion that its pursuit of nuclear energy is also an effort to make nuclear weapons. Iran insists it has no such ambitions but many of the world's major powers remain unconvinced and Israel is warning it will attack. The international community is seeking assurances from Iran at a fresh round of talks in Moscow later this month. Katya Adler talks to Dr Ali Asghar Soltanieh, Iran's ambassador to the UN's nuclear watchdog, the IAEA. What guarantees can or will Iran give that its nuclear ambitions are entirely peaceful?