Israel is the only country in the Middle East that faces daily threats for its destruction and enemy states on it's northern and southern borders who openly declare that a state of war exists between them and Israel. Deterrence is the only practical option for Israel to maintain its existence and the lives of her citizens. As long as this continuous conflict is present, Israel can ill afford to surrender any military edge it might posess, Besides, who has given the powerful states who posess masses of nuclear weapons to dictate their non-proliferation policy to anyother nation? Who gave them the monopoly on nuclear weapons anyway? Israel threatens no one with WMDs in the region and still does not admit that she has any, this ambiguity, however challenged, remains and must remain in force.
from the article: UN Security Council permanent members back nuclear-free Mideast