"The study warns of the risk that terrorists could mount a computer-network attack in which the casualties would be measured not by the hundreds or thousands killed but by the millions severely affected by damaged infrastructure, like electrical grids’ being taken down." I wonder about this. It seems like every study about the dangers of terrorism mentions this kind of cyber-attack as a possibility, and I just don't…
Yes, but there are many people who are not young and healthy.
The worst impact would be on hospitals, nursing homes, the homes of elderly, etc, who require electricity for something other than productivity and comfort.