I'm sure Iran has learnt a lesson, or two as a result. Beside it's apple and oranges. That's Muslim vs Muslim. This is different. What it may do is tip the balance of tolerance over.
It may take on a global level. How many Islamic countries can one attack before all Muslims feel it's gone personal? It could end up as massive world-wide guerilla warfare.
Can we truly afford that?
This war will be one bent on destoying America's weakened economy.