A possible nuclear program in Iran, atomic weapons in North Korea and instability in Pakistan: It is not an easy time to be head of the International Atomic Energy Agency. SPIEGEL spoke with new IAEA head Yukiya Amano about the challenges he faces and the dangers eminating from Tehran.

SPIEGEL: Mr. Director General, according to the diplomatic dispatches made public by WikiLeaks, US diplomats in Vienna described your election as their own "victory" and as a "reinforcement of our influence" on the Agency? Did that make you uncomfortable?

YUKIYA AMANO, DIRECTOR GENERAL, IAEA: My unanimous election...

SPIEGEL: ...following four previous rounds of voting...

AMANO: ...was a victory for all Member Nations. Besides, it isn't necessarily a drawback if the United States believes that my election is in keeping with its interests. My job is to represent the interests of all of our members, be it China, Russia or Nigeria.

SPIEGEL: And Iran?

AMANO: Of course I represent the interests of Iran, as long as they involve the civilian use of nuclear energy and Tehran's ambitions serve peaceful purposes.

SPIEGEL: Do they? Cables from US ambassadors indicate that there is considerable mistrust on the part of Iran's Arab neighbors, for example, who fear that Tehran is secretly building nuclear weapons.

AMANO: My job is to prevent that from happening. But Iran is a difficult case. We still know too little about Tehran's nuclear activities. And we still don't have answers to all of our questions, which is why we make it clear that Tehran has to cooperate with us more effectively.

SPIEGEL: In other words, the concerns are justified?

AMANO: I don't want to speculate about the concerns of others. We deplore the fact that Iran does not inform us in a timely manner. We only learned about the uranium enrichment facility near Qom after satellite images were made public in 2009. The construction of other nuclear plants was not discussed with us ahead of time, but was simply decided upon and announced. We still lack comprehensive information about these plants, which we need if we are to develop trust. The United Nations Security Council's calls for a halt on uranium enrichment are still being ignored.

SPIEGEL: According to the most recent estimates, Iran is only a year away from building a bomb.

AMANO: I´m not so sure about that. Despite all unanswered questions, we cannot say that Iran is pursuing a nuclear weapons program.

SPIEGEL: Because you lack the conclusive evidence, the "smoking gun?"

AMANO: That´s not my choice of words. I'm talking about unanswered questions. What purpose do components for a highly explosive ignition system serve? What are neutron triggers needed for? Are there nuclear developments that suggest a military background? Iran must provide clarity on these issues. That's the point.

SPIEGEL: Even though you emphasize your impartiality, the relationship between the IAEA and Iran is highly charged. Members of the government in Tehran have berated your inspectors as "spies". In a recent SPIEGEL interview, the previous head of the Iranian nuclear energy agency and the country's new foreign minister, Ali Akbar Salehi, charged that you could forfeit your "legitimacy" due to your "partisanship for certain policies."

AMANO: Our inspectors in Iran, of which we now have two, are not guilty of anything. We inspect and investigate, all in coordination with the relevant government officials in Tehran. I have since had a personal conversation with Mr. Salehi, and I am in regular contact with the Iranian ambassador to the IAEA. I deliberately avoid a sharp tone on the subject of Iran, but I do call attention to grievances.

SPIEGEL: Shortly after taking office though you reportedly had a long conversation with then chief inspector Olli Heinonen, who recently began teaching at Harvard, in which you pointed out that the tone in the Iran reports had to become tougher.

AMANO: I don't discuss tones. I'm interested in facts. And I'm also neither a hardliner nor a soft-liner. But if I do have concerns or doubts, I don't keep them to myself. I want to know everything, and I want clarity, no matter which side is applying pressure. Seen in this light, the tone hasn't become tougher but, with all due respect, more direct.

SPIEGEL: The meeting between Iran and representatives of the global community in Geneva in early December wasn't exactly encouraging. Other than the agreement to conduct further talks, it didn't yield much.

AMANO: We have to approach each other to bridge the credibility gap. Every step in the process is important. If the Geneva talks enable us to find a solution to problems with the research reactor, perhaps we can also address other areas of conflict.

SPIEGEL: Meanwhile, the Iranians, despite four rounds of sanctions in the UN Security Council, are continuing to enrich uranium - to 3.5 percent or, for their research reactor, to as much as 20 percent.

AMANO: That they are, contrary to all UN resolutions. Iran now has more than 3 103 kilograms of low-enriched uranium, and 33 kilograms of highly-enriched uranium. At least both are completely subject to our monitoring.

SPIEGEL: But you yourself have not been to Tehran yet.

AMANO: I would very much like to go to Tehran, but not just to say hello. There has to be a good reason for a visit. If I travel to Tehran, I want to see progress.

SPIEGEL: Israel, which feels particularly threatened by Iranian President Mahmoud Ahmadinejad, has demonstrated, most recently in September 2007, that it does not shy away from military strikes. In Syria, an ally of Iran, Israel destroyed a complex of buildings where plutonium was presumably being produced. Do you have any new information about Syrian President Bashar Assad's nuclear plans?

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