Iran is currently under control by apocalyptically driven leadership. If they are allowed to acquire nuclear bombs, they will hold them like a suicide belt over countries that are against them, as they coordinate and launch a conventional war against Israel. Anyone who threatens to intercede will be faced with the choice of Iran launching nuclear missles, regardless of whether they get nuked in the process. These madmen are Hitler-maniacal times 10 with an added religious suicidal tendency.