Negotiations Over Iranian Nuclear Program Underway in Kazakhstan

Still some way to go

World powers and Iran still appeared far apart on Friday in negotiations on Tehran's nuclear program that were aimed at calming tensions which could boil over into war.

As talks got under way in Kazakhstan, the six nations: the United States, Russia, China, France, Britain and Germany - sought a concrete response from Iran to their February offer to ease sanctions if it stops its most sensitive nuclear work.