In another of those ‘Oh great’ stories we now learn (again) that cyberspies have been targeting the US electrical grid with a possible eye to staging a new 9/11 attack, this time by shutting us down at the power plug.

While they have not yet launched a major attack, experts suggest that if they did attack they could sabatoge power systems in a way that could keep the power shut down for weeks or months.

Such a scenario is not tough to imagine if you assume the terrorists used the sabatoge to overload generators and other power distribution systems. This could take months or more to repair.