Critical infrastructure: Off the web, out of danger?

The debate over the chances of a catastrophic cyber attack taking down a major part of the nation’s critical infrastructure (CI) has been ongoing for a generation.
But it hasn’t been settled – in some ways it is more intense now than ever.
On one side are those, including high government officials, who warn of a “cyber Pearl Harbor” that could leave swaths of the country in darkness and cold – without electric power – for months.
Retired Adm. James Stav