'Nuclear Iran' unacceptable: Bush

WASHINGTON: US President George W Bush said on Friday he was aware of speculation that Iran has started enriching uranium in a second network of centrifuges and said it was unacceptable for Tehran to have a nuclear weapon.   

"Whether they doubled it or not, the idea of Iran having a nuclear weapon is unacceptable," Bush said.

Bush said the international community needed to work harder to stop Iran from getting a nuclear weapon.