"He clearly stated that if action became necessary, it would be US, not Israel that would be taking action."
Here's a bit of news for you: Israel does not take orders from the USA regarding its military actions. They have their own military, and it is independent as the dickens. If Israel decides to destroy the Iranian nuclear facility, it will do so, and won't ask the US's permission.
You seem to believe that Israel is a state in the United States of America. It most certainly is not.