The discussion presupposes that someone can detonate a nuc' up there. To enter the argument and just dis the presumption is an interesting way of avoidance.

If two countries such as Iran and North Korea are working on nuclear weapons (they are) and delivery technologies (they are) and we know they will probably have a limited number of weapons in their arsenals, one way that they can effectively use a limited strike capability is with that high altitude burst.

It is technologically feasible and if a nuclear nation decided to do it there's not much we could do to stop it without a preemptive strike and that takes us to a political area we should avoid.

We are discussing the outcome of a successful EMP strike. The presumption may be wrong, but that doesn't make the discussion invalid. We as a nation aren't prepared for the aftermath.