Iran to change nuclear doctrine if existence threatened, adviser to Supreme Leader says

Iran will have to change its nuclear doctrine if its existence is threatened by Israel, an adviser to Iran's Supreme Leader, Kamal Kharrazi said, raising concerns about an Iranian nuclear weapon. "We have no decision to build a nuclear bomb, but should Iran's existence be threatened, there will be no choice but to change our military doctrine," Kharrazi said, as reported by Iran's Student News Network on Thursday, adding that Tehran has already signalled it has the potential to build such weapons.