Iran is discussing with the IAEA its development of exploding bridgewire (EBW) detonators, which are safer and more controllable than other detonators and are used by other countries in nuclear weapons. Iran says that their EBW detonators are for oilfield applications. Iran has provided materials to the IAEA, and the IAEA has not come to any conclusions yet.
The IAEA was investigating PMD long before the JPOA went into effect and has many more questions. The EBW discussion is a first step, but the IAEA would like a more systematic approach. However, they leave the door open to piecemeal discussions, requesting further information on neutron transport modeling and calculations (how neutrons split atoms ”“ in a reactor or a bomb) and a site visit to Parchin, where explosives experiments may have been done to give information that is useful only for a bomb.
For the past six months, both sides have stuck by their word as expressed in the JPOA. They are closer to an agreement than ever before.