The top Iranian nuclear negotiator praised Russia and China on Tuesday as taking a “realistic” approach after talks among major powers failed to resolve differences over the Tehran nuclear program. “We feel that certain countries have been acting in a more realistic manner” over the nuclear issue, the negotiator, Ali Larijani, said, referring to the two UN powers. He was in Athens for talks with the Greek foreign minister, Dora Bakoyannis. “Other countries are trying to create headaches,” he said. “I come from a region where a lot of problems have been created by the United States. Full Story