Every country in the world has the inherent right to protect its citizens from a nuclear attack. Israel, a nation that Obama has himself acknowledged was built on the ashes of one Holocaust, certainly has the right to take military action to prevent a second Holocaust, especially at the hands of a country that has explicitly threatened to wipe it off the map.
The world ignored the explicit threats of one tyrant who threatened to destroy the Jewish people in the 1930s, and he nearly succeeded in the 1940s. Israel cannot be expected to ignore Hitler’s successor, who while denying the first Holocaust, threatens a second one.
The United States has promised to regard a nuclear attack on Israel as a nuclear attack on itself, but Iran does not credit such threats, since it appears that the Obama administration has already broken its promise not to accept a nuclear Iran. Elie Wiesel put it well when he said that the Holocaust has taught the Jewish people to “believe the threats of our enemies more than the promises of our friends.”