Iranian Foreign Minister Manouchehr Mottaki says forthcoming nuclear talks in Geneva and the participation of a U.S. diplomat for the first time look positive and he expects progress. The U.S. Undersecretary of State for Political Affairs William Burns will attend the talks in Geneva on Saturday _ the first time the U.S. has had such a presence _ and join colleagues from other world powers to meet with Iran's chief nuclear negotiator, according to a report of the Associated Press. «The new negotiation process, the participation of U.S. diplomat look positive from the outset but we hope that is reflected in the talks,» Mottaki told a joint news conference with Turkish Foreign Minister Ali Babacan.