The Israeli philosophy is a paraphrase from The Bible: "Do unto others as they would do unto you. But do it first."

This can be used to justify any kind of atrocity, because all you have to do is say "they intended to do it to me, so I did it to them first", regardless of whether or not that accusation is actually true. This is why it is particularly dangerous for the world for anyone to hold this mindset. And this is why the US government and the Israeli government are working so hard to convince people that the government of Iran intends to wage a unilateral nuclear strike against Israel. If they can get enough people to believe that lie, they can justify waging their own unilateral nuclear strike against Iran.

Iran has no intention of waging a nuclear attack on Israel. They know that to do so would mean their utter destruction. They offered to negotiate with the United States government unconditionally and the US government rebuffed their offer and instead put them on the "axis of evil" list. The reason the US government did this is because it wants a justification to unilaterally attack Iran. Hillary is saying that she is on board with this plan.