OK so you "know" that Iran is going to turn on Israel, what does that mean exactly? Some kind of surprise nuclear attack (assuming Iran develops the capability)? Completely unrealistic given that Israel has second strike capability and is protected by the US umbrella. Any kind of covert use of a nuke would be traced back to Iran, and we're back to the previous sentence. So that leaves what? A conventional invasion of Israel by the Iranian army? Laughable - the IDF would whoop the Iranian army so fast that the six day war would seem long. So, what exactly is it that you are expecting to happen?
Report: blood tests show ISIS used mustard agent against Kurdish fighters (Reuters)
from the article: Netanyahu's mistake: Turning Iran into Israel's issue