For the first time in more than two years and two weeks after a landmark international agreement, inspectors from the United Nation’s nuclear agency have visited Iran’s Arak heavy water production plant. 

This new transparency is the result of a thaw in relations that led to Tehran agreeing to curb its nuclear program for six months in return for the United States and its allies easing sanctions its oil, gold, petrochemicals, auto industries, and civil aviation with an estimated value of more than A$7.6 Billion. 

Still, the West remains concerned Iran's heavy water work could be used in the production of a nuclear bomb.  Tehran insists it only wants to be able to produce nuclear energy.

The Arak heavy water production plant is designed to supply a research reactor under construction nearby.  Iran has promised not to commission or fuel the Arak reactor during the six months interim agreement.  After the one-day inspection, the two International Atomic Energy Agency inspectors headed back to their headquarters in Vienna.