I don't believe it is in Israel's best interests to be lobbing nukes at Iran, unless Israel is responding to an Iranian nuclear attack. Do I believe in a preemptive conventional strike on Iranian nuclear facilities, and their war making capacity if the current nuclear talks break down?
I do, and the sooner the better. However, I don't want Israel to do it, I want the United States of America to do it. I want the American Air Force to drop and fire, bunker-busting laser guided missles that penetrate deep in the ground such as the AGM-142s. These 3 thousand pound television guided missles could do the job. If they don't than we have to consider other options.