I spent 20 years in the power industry. I worked on the computer system that controls all of the power distribution, EMP pulse and solar flares impact on our system was discussed in numerous meetings. I also have a military background, and I worked on aircraft that were shielded from EMP. I can tell you from first-hand experience and knowledge of both Power, iindustry, and Military that this book is extremely accurate. The threat exists, and this book is on the money of what will happen. It is unfortunate that our government basically sweeps this under the rug, and spends more time discussing he she them they pronouns than this extremely perilous situation that is going to take place.