And on the off chance this defense doesn’t work? No system is perfect. Put another way, would the risk calculation for an attack on Iran be as easy as it is right now?
The point of having nuclear capabilities is to make the risk calculation more difficult. It doesn’t mean you need to have state of the art capabilities.
Assuming I get your point, I would nevertheless say I think most White House admins would care: would not one of those someones in the Middle East who gets hit perhaps include Israel?
I have no idea what strategic value the nation of Israel has for the nation of the USA, but there is clearly strong cultural and political relevant of the former to the latter.
The point of having nuclear capabilities is to make the risk calculation more difficult. It doesn’t mean you need to have state of the art capabilities.