For 60 years the world has faced no greater threat than nuclear weapons. Japan, as a nuclear victim country, with “three non-nuclear principles” (non-production, non-possession, and non-introduction of nuclear weapons into Japan) and its “Peace Constitution,” had unique credentials to play a positive role in helping the world find a solution, yet its record has been consistently pro-nuclear, that is to say, pro-nuclear energy, pro-the nuclear cycle, and, pro-nuclear weapons. This paper elaborates on Japan's aspiration to become a nuclear state, arguing that attention should be paid to Rokkasho, Tsuruga, and Hamaoka, the places at the heart of Japan's present and future nuclear plans, no less than to Hiroshima and Nagasaki, whose names represent the horror of its nuclear past.