amdfangirl :
I trust Iran.
I don't believe states are fanatical enough to risk obliteration to aim a nuclear weapon at the West.
Sucide terrorism in terms of indivdual acts might seem insane, but overall it serves clear strategic aims, with the logic being that you sacrifice a person and some capital for an exponentially greater impact on the enemy state. The loss to the terrorist group is minimal and the loss of life and economic impact to the enemy country is immense.
For suicide terrorism to work, there has to been a large supply of support from the native populace. This is the strategic part. There needs to be enough greviance against a certain enemy state before a terrorist group will gain enough support and resources to strike against the enemy state, that's why you don't see Al Qaeda attack Japanese skyscrapers or metro. The objectives of terrorism are usually nationalistic in nature -> terrorism usually advocates for self-determination or for the withdrawal of foreign influneces - think of Hamas in Israel-Palestine or the Tamil Tigers of India or even historically to the Boxer rebellion in China.
If Iran were to successfully denonate a long range nuclear weapon in a major US city, any military general or ruler will know the US will respond in turn, possibly with much greater fury. In essence they would have to sacrifice their entire country for a little bit of pitieous revenge. Even if a despotic ruler was insane to do so, if any of their subjects were still alive; the remaining citizens would instantly rebel against the government, assuming it still exists. Denonating a nuclear weapon will not achieve the aims of Iran, no sir, but Iran will likely use the threat of a nuclear strike as a bargaining tool to get more leverage out of the international world.
Samuel Huntington stated that in an era dominated by the US and her allies as the primary power, such "weapon states" would pose the greatest threat to international relations. Therein the threat lies - if Iran succeeds in creating a nuclear weapon other states will likely see an opportunity to join the exclusive club of states with nukes.
That or Iran sells nuclear technology to terrorist groups that are dispersed in various states with no direct or central base of operations that the US can strike. Iran might not use the nuke directly, but it might proxy it to one of these said groups (although woe be the terrorist group that claims responsibility). Although the above is unlikely, given my explanations above, it is still a possibility.
Your argument started off weak but finished strong with the proxy terrorist groups.
😀
The concern isn't Iran using a nuclear weapon; It is about having one and the technology to create more. In order to Iran to verify it can create a nuclear weapon, they must test and successfully detonate one. That would be significant. In the face of invading them, they could use one. This is a significant deterrent. Or they could use one on a local ally state.
The US wouldn't respond to a nuke with a nuke. But if Iran invaded another country or caused an issue where foreign forces had to intervene, the nuke threat exists. What if the US put 100,000 boots on the ground in Iraq to invade and Iran tossed a bomb over? Again, the US would not likely respond, at least immediately, with a nuke. The US wouldn't put themselves in that position to have to deal with it. Much like the Cuban Missile Crisis, we would back down and save political face.
Another concern is that within the US and any other nuclear carrying country: We don't know that they work anymore.
Would it not be a huge embarrassment that if the US launched a nuke, made the world aware, and then it didn't work? Do we fire off another and hope it works?
We haven't tested a nuclear weapon since.. 1981 or 1987 or something. Google will solve that question.
This would be like rebuilding your car's engine once every other year for 30 years, never once turning it on to verify it ever works. Then, one day you desperately need to get in your car and go somewhere. When you turn the key, does it start and run? Make things complicated another step, consider having 1 technician per decade being the one working on your engine.
Fact is, we don't know if they work. If Iran had one, they would likely use them as proxy terrorist groups like they did in Iran and somewhat in Afghanistan.
The suitcase nuke doesn't exist. It's just too heavy to do that. It wouldn't be too hard to build a few small bombs, half the size of the ones dropped on Japan, and get them close to a city, or fly a 'hijacked' plane, etc.
Or use it in a way no one is really prepared for or has thought of yet.
It is better to not let them have one and do our best to keep it from them than to allow them to make one and hope they don't use it.