In this work of fiction (but very well researched and based on much fact), 90% of the US dies in an EMP attack.

In the history of even modern natural disaster, there are "waves of die offs."
The elderly, the sick, many children, and those dependent on medication or intense care die first.
Thanks for that.
Have you read the sequel “One Year Later”? I haven’t read it but I heard the author on Coast to Coast the other night.
I meant “One Year After”.