A handout picture released by the official website of Iran's presidency office shows Iranian President Mahmoud Ahmadinejad visits Natanz uranium enrichment facilities some 300 kms, south of the capital Tehran on April 8, 2008. Iranian President Ahmadinejad annonced today that Iran is starting work to install 6,000 new uranium-enriching centrifuges at its nuclear plant in Natanz. Getty Images logo Getty Images 19 months ago

A handout picture released by the official website of Iran's presidency office shows Iranian President Mahmoud Ahmadinejad visits Natanz uranium enrichment facilities some 300 kms, south of the capital Tehran on April 8, 2008. Iranian President Ahmadinejad annonced today that Iran is starting work to install 6,000 new uranium-enriching centrifuges at its nuclear plant in Natanz.