iran
suppose you were sitting on the second largest material prize in the history of the world. and your neighbor, with the third largest material prize in the history of the world, was just overrun by a hostile foreign country. and that invader's now making threats in your direction. wouldn't you be in a big goddam hurry to develop weapons that at least have a hope of making them think twice before invading you? your neighbor was erroneously accused of having such weapons. if you're going to be invaded regardless of whether you have wmd's or not... you might as well have them. and make the fuckers pay dearly for violating your country.