VIENNA — After more than a decade of working behind layers of front companies and in hidden laboratories, Iran appears to be in the late stages of developing the capacity to build a nuclear bomb.
Iran insists that like many countries it is only building commercial nuclear reactors to generate electricity for homes and factories. "Iran's efforts in the field of nuclear technology are focused on civilian application and nothing else," President Mohammad Khatami said on state television in February. "This is the legitimate right of the Iranian people."
But a three-month investigation by The Times -- drawing on previously secret reports, international officials, independent experts, Iranian exiles and intelligence sources in Europe and the Middle East -- uncovered strong evidence that Iran's commercial program masks a plan to become the world's next nuclear power. The country has been engaged in a pattern of clandestine activity that has concealed weapons work from international inspectors. Technology and scientists from Russia, China, North Korea and Pakistan have propelled Iran's nuclear program much closer to producing a bomb than Iraq ever was.
No one is certain when Iran might produce its first atomic weapon. Some experts said two or three years; others believe the government has probably not given a final go-ahead. But it is clear that Iran is moving purposefully and rapidly toward acquiring the capability.
Among the findings:
* A confidential report prepared by the French government in May concluded that Iran is surprisingly close to having enriched uranium or plutonium for a bomb. The French warned other governments to exercise "the most serious vigilance on their exports to Iran and Iranian front companies," according to a copy of the report provided by a foreign intelligence service.
* Samples of uranium taken by U.N. inspectors in Iran in June tested positive for enrichment levels high enough to be consistent with an attempt to build a nuclear weapon, according to a foreign intelligence officer and an American diplomat. The Reuters news service first reported the possibility that the material was weapons-grade last month.
* Iran is concealing several weapons research laboratories and evidence of past activity at a plant disguised as a watch-making factory in a Tehran suburb. In June, U.N. inspectors were refused access to two large rooms and barred from testing samples at the factory, called the Kalaye Electric Co.
