In this week's New Statesman cover story, the former chief UN weapons inspector and ex-head of the International Atomic Energy Agency Hans Blix offers a diplomatic alternative to military action against Iran - and warns that any such attack by the west would be illegal and catastrophic:
If Iran were to be bombed, it would be another action in disregard of the UN Charter. There would be no authorisation by the Security Council. Iran has not attacked anybody and despite Mahmoud Ahmadinejad's wild, populist declarations that Israel should be wiped off the map there is no imminent Iranian threat that could be invoked to justify pre-emptive action.
Blix says he does not believe that the Iranian regime is trying to build or acquire nuclear weapons:
It is possible - but is denied by Iran and not evident to me - that there is a determination to make a nuclear weapon.
The former director of the IAEA points out that the much-discussed report on Iran released by the UN's nuclear watchdog in November 2011 "did not . . . conclude that Iran was making a weapon or had taken a decision to make one". And he issues a stark warning on Iran to the agency's current head:
In my view, the agency should not . . . draw conclusions from information where the supplier is not ready also to show evidence. Both Mohamed ElBaradei and I were careful on this point and I hope the present director general of the IAEA, Yukiya Amano, follows that line. The agency should not risk its own credibility by relying on data that it cannot verify fully.
Blix says "bombing Iranian nuclear installations may be a path to disaster rather than to a solution" and condemns the "outrageous, gangster-style" killing of Iranian scientists. He writes:
Iranian leaders are not going to sit quietly and twiddle their thumbs . . . A war in the Gulf and skyrocketing of oil and gas prices are not exactly what a financially troubled world needs right now. Furthermore, not all relevant installations in Iran would be destroyed. Some may not be known. The capacity and know-how to produce more centrifuges will survive and after armed attacks the Iranian government, which many now hate, may get broad support in a nation feeling humiliated by the attack. If there was not already a decision to go for a nuclear weapon it would then be taken.
The former chief UN weapons inspector in Iraq calls for the establishment of a "nuclear-weapon-free zone" in the Middle East as a solution to the impasse over Iran:
To many, the idea of an agreement between the parties in the Middle East - including Israel and Iran - to renounce not only the possession, acquisition or development of weapons of mass destruction, but also the means of their production, might seem very remote. It does not seem far-fetched to me.
It would, to be sure, call for many difficult arrangements, including verification going beyond IAEA safeguards, as well as outside security guarantees and assurances of supply of nuclear fuel for civilian reactors. It would require that Israel give up its nuclear weapons, stocks of fissile material and capability to produce enriched uranium or plutonium. It would require Iran to do away with its enrichment plants and a number of other installations. All states in the zone would agree between themselves not to acquire or develop capabilities for the enrichment of uranium or production of plutonium.
And he explains why this arrangement would appeal to all sides.