Japan owns nearly 50 tons of separated plutonium. That is enough for over 5,000 nuclear weapons. Yet Japan has no feasible peaceful use for most of this material.This raises an obvious question: How did a country that forswears nuclear arms come to possess more weapons-usable plutonium than most countries that do have nuclear arsenals?Some argue it is the unforeseen consequence of unexpected events, such as the failure of Japan's experimental Monju breeder reactor, or the Fukushima accident that compelled Japan to shut down traditional nuclear power plants.Indeed, Kyodo News quoted a former…READ FULL ARTICLE