This shows how important it is to get Iran to return to the Additional Protocols. Such work would have to be revealed much earlier than just before it goes into production. The Additional Protocols provide for snap inspections, and provide the IAEA with the right to investigate undeclared sites as well as all possible facilities including military installations. Unless this is the Natanz Pilot Plant, then Iran will be in a difficult negotiating position. The General Assembly has deflated Iran's 'disarmament' ploy and it may well be that the regime is trapped. The big fear is that they will announce that in three months they will leave the NPT.
2 Turkish security personnel killed, 24 wounded by Kurdish suicide bomb in eastern Turkey (Reuters)
from the article: Obama: We'll mull 'sanctions that bite' if Iran nuclear talks fail