Imagine if Iran has the Bomb. Everyone thinks that they will use a missile delivery system...

What if they used something very different...

What if they used a lead lined shipping freight container. Then load the device onto a merchant ship filled with shipping containers. They then position these freighters in major harbors in the USA...

They then do a coordinated detonation.

:nuke3:

Lots of Cities would be destroyed. World Markets would crumble and there would be no more Iran.

They would fulfill their prophecy of destruction and ushering in the 12th Imam...