WHG:"Whether Israel is a signatory to the Nuclear Proliferation Treaty or not is really not the issue" Iran would not have received one iota of help without being a signatory to the NPT. No parts, no materials, no equipment, no designs, no advice. They would have had to produce everything themselves. What they have done is sign the the NPT to get the international help in developing a nuclear industrial base, then used then used this industrial base to produce nuclear weapons. They have breeched the contract and there needs to be a price for this breech or the NPT is worth nothing.
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from the article: Iran: World can't block our atomic program while Israel has nukes