In a significant move, Iran agreed Sunday to provide additional information sought by the U.N. nuclear agency in its long-stalled probe of suspicions that Tehran may have worked on nuclear weapons.
Iran insists it never wanted or tried to develop such arms, and the U.N.'s International Atomic Energy Agency (IAEA) was pushing ahead with its investigation with expectations that Tehran would continue to assert that all of its activities it is ready to reveal were meant for peaceful nuclear use.
Still, the IAEA's announcement that Tehran was ready to "provide information and explanations" for experiments in a type of detonator that the agency says could be used to trigger a nuclear explosion appeared to be the latest indication that Iran's new political leadership is seeking to ease tensions over its nuclear program.
The development — although limited for now — marked a step forward in an international push to settle a decade-old dispute over Iran's nuclear program. Tehran says this is peaceful, while the West fears that Iran wants to develop atomic arms.