However, it does continue to pursue uranium enrichment and the construction of a heavy water reactor, both of which have military potential.

BBC: Liam Fox: Iran may have a nuclear weapon by 2012

Iran also began building an actual weapons reactor, a 40 MW heavy water reactor at Arak, that would take natural uranium, and produce plutonium.

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Moreover, between the Russian-built, soon-to-be-opened nuclear reactor in Bushehr and the illicit heavy water reactor in Arak, Iran will have the capacity to build plutonium-based bombs within two years.

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At Commons question time on 31 January 2011, Dr Fox said Tehran was continuing to pursue uranium enrichment as well as the construction of a heavy water reactor, both of which had "military potential".

BBC: Liam Fox: Iran may have a nuclear weapon by 2012

Iran is also building a heavy-water reactor that could produce plutonium, another bomb ingredient.

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Iran, by comparison, is producing near-weapons-grade uranium, but it also has a heavy-water reactor being developed that could produce weapons-usable plutonium.

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The enrichment plants at Natanz, Qom and perhaps elsewhere give Iran an early route to HEU. A planned heavy-water reactor at Arak will produce large quantities of plutonium as a by-product, but will not be completed for some years.

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The heavy water plant at Arak, the Esfahan conversion factory, the new reactor at Bushehr and the enrichment site at Natanz. 10.33.21 Music 10.33.24 Narrator And Israeli intelligence reportedly knows of other, hidden sites that are more difficult to destroy. 10.33.29 Music 10.33.31 Ehud Barak Some of them are well dug into the side hills with hardly any conventional weapon being able to penetrate.

BBC