The head of the International Atomic Energy Agency said on Thursday that his probe of allegations that Iran tried to make nuclear arms is at ``a dead end'' because Tehran is not cooperating.
Mohamed ElBaradei also criticized Tehran for not accepting an internationally endorsed plan meant to delay its ability to make such weapons.
The unusually blunt comments appeared to be a reflection of frustration four days before he ends his tenure leading an agency that has proven unable to overcome Iran's defiance and ease international concerns that it may be using a civilian nuclear programme as a cover for plans to make weapons.
``There has been no movement on remaining issues of concern which need to be clarified for the agency to verify the exclusively peaceful nature of Iran's nuclear programme,'' ElBaradei told the opening session of the IAEA's 35-nation board of governors. ``We have effectively reached a dead end, unless Iran engages fully with us.''
``Issues of concern'' is the IAEA term for intelligence and other information available to the agency indicating that Tehran has experimented with nuclear weapons programs, including missile-delivery systems and tests of explosives that could serve as nuclear-bomb detonators.
Since revelations of a secret Iranian nuclear programme surfaced eight years ago, much of ElBaradei's energies have been spent on trying to nudge Tehran to meet international demands that it freeze uranium enrichment and cooperate on other issues meant to ease fears of its nuclear aims.
Iran started stonewalling the agency over a year ago over the ``issues of concern,'' saying there was nothing to investigate because the allegations were false. ElBaradei has emphasized the need for talks instead of threats in engaging Iran. He has criticized the U.S. for invading Iraq on the pretext that Saddam Hussein had a nuclear weapons programme, which has never been proven. That _ and perceived softness on the Iran issue _ has drawn criticism from the U.S. and its allies that he was overstepping his mandate.
But ElBaradei's comments on Thursday left little doubt that _ just days before his departure _ he was most unhappy with Iran.
``I am disappointed that Iran has not so far agreed to the original proposal'' involving removal of most of Iran's enriched stockpile, ElBaradei told the meeting.
