[The International Atomic Energy Agency has] inspectors in all the sites where Iran is producing enriched uranium. These inspectors, who make frequent surprise visits, keep cameras in place to watch every move, and they carefully measure Iran’s input of feed stock to the centrifuges and the output of low enriched uranium, which is then placed under seal.
Feb 5, 2012
Iran's Nuclear Program
Iran’s Nuclear Program
From Gary Sick, Iran expert (“Will Israel Really Attack Iran?”):