Mike Mabee and Kevin Freeman respond here on the air of Secure Freedom Radio to an organism called EPRI (the Electric Power Research Institute). This organism is trying to downplay the threat of EMP attacks on the electric grid and the effects that it can produce. The Electromagnetic Defense Task Force has also published a rebuttal that you can read here: Electromagnetic Pulse Threats to America’s Electric Grid: Counterpoints to Electric Power Research Institute Positions.