Ariane Tabatabai in Bulletin of the Atomic Scientists:
After months of negotiations, Iran and six world powers have finally reached a framework agreement on limiting the country’s nuclear program in exchange for sanctions relief. The deal announced on Thursday is intended as the basis for a comprehensive agreement to be worked out by the end of June.
Getting to this agreement was a crucial step, as virtually all technical issues have now been addressed, but much work still remains to be done. The coming months will involve a great deal of legal and political wrangling. In the United States especially, due to anxious allies (Saudi Arabia and Israel) and some domestic opposition (especially among Republicans in Congress), negotiations will keep the White House busy.
Nonetheless, this is a good agreement for both sides, as indicated by some of its key components.
First, most of the public discussion about the negotiations has until now been focused on quantifiable elements, such as the number of centrifuges and amount of low-enriched uranium that Iran gets to keep, and the length of the deal’s implementation. But perhaps the most crucial aspect lies in the International Atomic Energy Agency’s (IAEA) access to Iranian facilities. In the framework deal, Tehran has said it will once again voluntarily implement the Additional Protocol to its existing IAEA safeguards agreement, granting the nuclear watchdog more inspections authority.
More here. And there is also this: Iranians erupt with joy after nuclear deal.