A US regime change operation first tries to destabilize the economy, stir up civil unrest, and inflict maximum death and suffering on the civilian populace. This is happening now in Iran. The objective is to get the Iranian people to blame and overthrow their own government, but the plan is backfiring because of course, the Iranian populace knows it's the US who is causing their suffering. I have little doubt that Iran does want to acquire a nuclear weapon, but not for offensive purposes. Iran is not suicidal. Iran's leaders know that the US is deterred from running its regime change operations on a nuclear-armed country. And that's also why the US is so determined to stop Iran from becoming nuclear-armed. The second stage of the regime change operation is when the US sends in its proxy army of rebels such as ISIS and Al Qaeda to attack Iran's infrastructure and cities. Let's watch for this.