I do not hink Iran will do somthing stupid like that, like you did say they are rational actors. But then the a image of Iran fire a misile over Europe is totaly stupid. But back to game theory, If Iran do blow a bomb in New York US louse (even if it's a small bomb) Iran louse 20 min later. Now if US really truly endanger the Iran diktatorsip (they louse) they can use this threat, hence stop US to continue becuse US do not want to "louse"
But US and Iran start to get more normal relation so this senario is not realistically.