What is the fine-grained topic of the following text: In November 2011, the International Atomic Energy Agency (IAEA) released a report detailing its concerns about “possible military dimensions to Iran’s nuclear program.” The report supports American intelligence estimates that Iran did have an active nuclear weapons program that was halted in 2003 and has not been restarted. Only return the topic.
IAEA report on possible military dimensions to Iran's nuclear program