2. Not really. There are only a small number of countries in that area that possess nuclear bombs and their capabilities are well known.
This is false, the methods scientists use is a catalog of listed materials that countries voluntarily provide the IAEA, if iran has an unlisted stock there is no way to prove it was theirs.
Do we want yet a third war in the Middle East? I do not see any country handing nuclear weaponry off to a proxy because the destruction would effect everyone.
I want to eradicate the regime of iran, not attack the whole country, or even the nuke facilities. I would bomb the government buildings, and the homes of the major officials, and use spec forces to kill/capture them. That regime can not exist any longer, it is a cancerous war mongering terror state whose regime cannot be trusted in any agreement. Peace in the ME is impossible as long as that regime exists.