Frankly I see the rational behind. Israel and the US can only win this war if Iran is destroyed quickly. They are unable to win a protracted conflict, therefore whatever decisions that are being made aren't going to be based on any longer term political consequences, instead bring based on what they view as the most destructive option at the current moment.

They need Iranian soceity to fold in on itself, and the easiest way they can think of that is by decapitation of their leadership. However, the last 20 hours have proven that this tactic was a failure, and that Iran has the capacity to continue operating even under such a circumstance.

I think it's fair to say that with this last desperate lasting out, the imperialists have essentially signed their death warrant for influence in West Asia.