Tell that to the Europeans in the late 1930s. Same thing is going on now. Instead of the Nazis arming while the world snoozed, we now have Iran arming themselves with nuclear weapons while the world snoozes.
It will be much worse this time - the Nazis didn't have the capability of taking out NY and DC in a split second. Iran will.
They may already have.
In any case, the 12thers have an apocalyptic world view that inclines them to armageddon. The are quite forthright about it.
Anyone who simply shrugs this off simply is leaving in a concocted liberal la-la land.
Some may say that we can't engage in preemptive war. There is nothing pre-emptive about this. We are NOW engaged in a war that we are fighting as if we might babel to win a partial victory. In this war, victory has to be total.
We CAN'T let Iran get nukes. Can't.
Period.