EMP does not have to man made to be a problem . Solar flares and CMEs are the real concern for system wide damage that can set us back by years if not decades

EMP does not have to man made to be a problem . Solar flares and CMEs are the real concern for system wide damage that can set us back by years if not decades . The last couple of years showed how fragile our supply chains are , A large scale event can damage critical equipment like transformers that take years to manufacture, merely restarting a stopped grid is extremely complex let alone a broken one