Iran response on uranium awaited

Iran has yet to respond to an offer from the permanent members of the UN Security Council plus Germany designed to calm the increasingly tense war of words over its nuclear programme. Despite the country's foreign minister speaking of a "new atmosphere" in the ongoing diplomacy, it is three weeks since the offer was made. The UN wants Iran to suspend its uranium enrichment programme, and a senior advisor to the country's supreme leader, Ayatollah Ali Khamenei, has confirmed that "everything" is up for negotiation.