enriched uranium that they are stockpiling. now they're increasing the enrichment level. they're going from 3.67% to 5%. they haven't said that now. to keep that in perspective, they need an enrichment of 90% to build a nuclear weapon. they say that's not something they want to do but they are far away from that. it is a very significant move. the big question is why are the iranians doing that? they are saying straightforward they are part of the nuclear agreement and have been abiding by it but they haven't gotten any program. they say if they're not going to get any benefits or get sanctioned by the u. states, they are going to stop. all in time they say they are going to do. all of this already coming in an extremely volatile situation.