I have some thoughts on this story.
* Iran was never a threat to the United States so long as the United States did not commit troops to the Middle East and threaten Iran. The more America and other countries threaten Iran, the more incentive Iran has to develop nukes.
* Nuclear weapons are not generally regarded by IR experts as an offensive threat.
* Iran has not invaded a country since the 18th Century. Nobody ranks their military as powerful as Israel’s, nor in the world’s top 20.
* You never know what people will do. You never know what a country will do. All you can do is assess their offensive capability and their incentives.
* All peoples either expand in power or they start dying.