Iran's chief negotiator Saeed Jalili attends a news conference after the talks on Iran's nuclear programme in AlmatyWith the aid of Justyna Pawlak and Yeganeh Torbati ALMATY (Reuters) – World powers and Iran failed again to ease their decade-previous dispute over Tehran’s disputed nuclear program in talks that ended on Saturday, prolonging a stand-off that dangers spiraling into a brand new Heart East conflict. The shortage of a breakthrough within the two-day assembly in Kazakhstan aimed at easing global concern over Iran’s contested nuclear task marked an extra setback for diplomatic efforts to get to the bottom of the row peacefully. …