DEAL LIMIT IS 3.67%

■ It moves Tehran’s enrichment significantly closer to the 90% concentration of uranium-235 isotopes used in nuclear weapons.

■ Iran had been enriching up to 20% — and even that was a short technical step to weapons grade. The deal limited Iran’s enrichment to 3.67%.

■ In the coming weeks, Iran has threatened to further impede IAEA inspections and potentially destroy video recordings it now holds of its facilities.

■ Iran continues to use advanced centrifuges and gain know-how in high enrichment, something that worries nonproliferation experts.