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| Version 2 | Version 3 |
|---|---|
| Iran 'steps up nuclear programme' | Iran 'steps up nuclear programme' |
| (6 days later) | |
| Iran has reportedly taken another step in its uranium enrichment programme, in defiance of international pressure. | Iran has reportedly taken another step in its uranium enrichment programme, in defiance of international pressure. |
| It has activated a second set of centrifuges - the machines used to enrich uranium - the semi-official Isna agency has said. | It has activated a second set of centrifuges - the machines used to enrich uranium - the semi-official Isna agency has said. |
| A BBC correspondent says Iran would need tens of thousands of centrifuges to make industrial-scale nuclear fuel. | A BBC correspondent says Iran would need tens of thousands of centrifuges to make industrial-scale nuclear fuel. |
| The UN Security Council is to debate sanctions after Iran failed to meet an August deadline to stop enrichment. | The UN Security Council is to debate sanctions after Iran failed to meet an August deadline to stop enrichment. |
| Iran has not convinced the US and other Western states that its enrichment work is only aimed at generating electricity, and not acquiring nuclear weapons. | Iran has not convinced the US and other Western states that its enrichment work is only aimed at generating electricity, and not acquiring nuclear weapons. |
| There is no doubt that the use of the second cascade of centrifuges will be seen as an act of defiance by the international community at what is a sensitive time, the BBC's Frances Harrison reports from Tehran. | There is no doubt that the use of the second cascade of centrifuges will be seen as an act of defiance by the international community at what is a sensitive time, the BBC's Frances Harrison reports from Tehran. |
| 'No secret' | 'No secret' |
| The Iranian report suggested that scientists had injected gas into the second cascade. | The Iranian report suggested that scientists had injected gas into the second cascade. |
| Isna quoted its unnamed source as saying the second cascade's "product" had been obtained. | Isna quoted its unnamed source as saying the second cascade's "product" had been obtained. |
| The source said the second cascade had been installed two weeks ago with the knowledge of UN nuclear inspectors. | The source said the second cascade had been installed two weeks ago with the knowledge of UN nuclear inspectors. |
| "The International Atomic Energy Agency has been fully aware of the issue and the inspectors are present in Iran," the source said. | "The International Atomic Energy Agency has been fully aware of the issue and the inspectors are present in Iran," the source said. |
| Iran's first cascade, consisting of 168 centrifuges, produced a small quantity of enriched uranium in February. | Iran's first cascade, consisting of 168 centrifuges, produced a small quantity of enriched uranium in February. |
| Iran has said it plans to install 3,000 centrifuges at its nuclear site in Natanz by the end of this year. | Iran has said it plans to install 3,000 centrifuges at its nuclear site in Natanz by the end of this year. |