If you are trying to keep Iran from pushing for nuclear...

Israel Drafting Blueprint for Iran Attack, Report Says
The U.S. should condemn this and bring other global powers together to sit down with Israel to discuss how we can help decrease their need for aggressive posturing with Iran which inflames the middle east and plays into the hands of the terrorists.

Its not even a smart move...

One Israeli defense official expressed doubt that a unilateral Israeli strike could destroy all of Iran's nuclear facilities, which are geographically dispersed and some of which are underground.

“We could not risk an operation which would only partially succeed," the official said. "That would leave us open to a nuclear attack from Iran’s remaining weapons stock. Israel would likely need the support, the backing, of forces from a Western ally to successfully carry out the operation.”