Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iran Nuclear Talks Enter Final Day US says no breakthroughs expected. VOA News 22 January 2011 Iran's chief nuclear negotiator Saeed Jalili (R) and European Union foreign policy chief Catherine Ashton arrive for talks at the Ciragan Palace in Istanbul, Turkey, 21 Jan 2011 Photo: Reuters Iran's chief nuclear negotiator Saeed Jalili (R) and European Union foreign policy chief Catherine Ashton arrive for talks at the Ciragan Palace in Istanbul, Turkey, 21 Jan 2011 Representatives from Iran and six world powers enter a second and final day of talks Saturday in Turkey to discuss Tehran's controversial nuclear program. The talks include Iran's nuclear chief negotiator Saeed Jalili and representatives from the five permanent members of the U.N. Security Council and Germany, a group known as the P5 + 1.  Iranian officials said the talks started in a "positive atmosphere." Jalili held one-on-one talks Friday with several delegations, but it is unclear whether he will meet with the U.S. representative, Under-Secretary for Political Affairs Bill Burns. State Department Spokesman Philip Crowley says the U.S. would like to see a meaningful and practical negotiation process emerge with Iran's nuclear program as a core focus. He said the meetings are an opportunity for Iran to address matters of great concern for the international community. Iranian state-run media quote a communications official attending the talks, media affairs deputy for the Secretariat of the Supreme National Council Abolfazi Zohrevand, as saying his country's nuclear rights have "not been an issue" in the debate. U.S. State Department spokesman Mark Toner has said the United States does not expect any "big breakthroughs" in Istanbul. But he says U.S. negotiators were willing to discuss a nuclear fuel swap proposal updated to reflect Iran's progress in enrichment since 2009. Iran's envoy to the International Atomic Energy Agency, Ali Asghar Soltanieh, said Thursday the country is ready to discuss a possible fuel swap to run its reactors. He said world powers need to move quickly on such a deal because Tehran would have no need for the agreement once it begins putting its own 20 percent enriched uranium into its reactors. Under a proposal brokered last year by Brazil and Turkey, Iran would exchange low-enriched uranium for fuel specially processed to run a Tehran reactor producing medical isotopes. World leaders are hoping to address concerns that Iran is trying to develop nuclear weapons, a charge Tehran denies. Iran is facing Western sanctions because of its nuclear program. .