It was probably not very diplomatic of him to declare so blatantly that the emperor does not have cloths, but then again, that is the blatant truth. What sense does it make for the world nuclear powers to try prevent others from obtaining it while they have reaped the benefits, and continue to do so, of that leverage. Iran's armies have not crossed their borders in 5 centuries. Israel is NO position to opine on this matter.
Israeli official: Der Spiegel report is an attack on Merkel's ties with Netanyahu (Haaretz)
from the article: Turkey PM: If you don't want Iran to have nukes, give yours up