This is an older interview with cybersquirrel1.com creator SpaceRogue on why we need not worry about the threats of nationalistic warlike cyber attacks on the power grid on the continent, but instead we must be more concerned about THE SQUIRRELS!!! (sort of..)
Squirrels, Birds, Snakes, Raccoons have caused 2,123 power outages around the world since 1987, and possibly more. SpaceRogue has been collecting, documenting, and sharing details of these mischievous  animal attacks against the power grids. Tune in to hear about how the power infrastructure works in North America and how the wilderfauna are fighting back against “the grid”!
"I don't think paralysis [of the electrical grid] is more likely by cyberattack than by natural disaster. And frankly the number-one threat experienced to date by the US electrical grid is squirrels." - John C. Inglis, Former Deputy Director, National Security Agency 2015.07.09

Originally aired April 17, 2017.