The problem is that with the MAD doctrine, it’s not about neutrajazing a warning shot where a tactical nuke would neutralise an aircraft carrier fleet or an tank division. It’s about dozens if not hundred of nuke flying to your country.

Even 80% efficiency in the counter measure would mean remove 10 of the 50 big cities from the map. This has drastic consequences for a country. Especially in a hyper connected, advanced industry society