Iran has revealed Bushehr tests but little else recently

As Iran moves closer to nuclear weapons capability, analysts and diplomats voice a growing concern: information about Tehran’s nuclear programme is becoming steadily scarcer, increasing nervousness about the Islamic republic’s activities and its ultimate goals.

The latest report on Iran’s nuclear progress, released last week by the International Atomic Energy Agency, the United Nations’ nuclear watchdog, reveals that Iran has produced 1,010kg of low-enriched uranium hexafluoride. If that stockpile were further enriched – a process that could be visible and time-consuming – it would provide enough fissile material for a single bomb.