WASHINGTON: Pakistan's role in nuclear proliferation is getting fresh attention in Washington amid a fervid debate in the United States about how close Iran is to building a nuclear weapons arsenal. Having credulously accepted the Bush administration's explanation, based on "assurances" from Islamabad, that Pakistan was not officially involved in the proliferation and it was the work of a rogue scientist, US analysts are now re-examining this claim in the light of new relevations about Iran's nuclear programme. Based on Iranian president Ahmedinijad's assertions about advances in the programme, it now transpires that Pakistan's rogue scientist AQ Khan may have...