In an interview in October 2011, President Ahmadinejad of Iran said: "We have already expressed our views about nuclear bombs. We said those who are seeking to build nuclear bombs or those who stockpile, they are politically and mentally retarded. We think they are stupid because the era of nuclear bombs is over. for example, should Iran continue its efforts and tolerate all international treasures only to build a nuclear bomb, or a few nuclear bombs that are useless? They can never be used!"