...the New York Times recently discovered that Iran, under strict orders from the Obama Administration circa two years ago to halt all acquisitions of nuclear material during the 18-month sanctions negotiation process, has grown its nuclear stockpile by about 20%, based on a report from the IAEA issued Friday. While Iran has stopped producing certain forms of highly enriched uranium and has stopped work at most of the facilities being tasked with producing an "atomic energy source" the 20% acquisition growth is in open defiance of their initial agreement. The Times goes on to note that Iran acquired the material recently, possibly for leverage in the talks, and that US officials were unsure as to how or when the actual acquisitions were made.
There's some good news, though. According to (US State Dept. spokesperson) Marie Harf, there's no reason to be concerned...