I have mixed feelings. The actors in this are all so good & they performed so well in their different roles. It was so tense but slightly frustrating that it was shown in three parts, although in reality it showed the reactions from each set of people involved and, perhaps, showed us how things may develop. Perhaps to be shown with all three parts linked together may have worked?
What a terrible situation, but if it is likely, we mustn't ignore it.
Sad if missiles can't intercept!!