How the world almost ended in 2012 - ever heard of the Carrington Event of 1859?
The dread anticipation of a coming apocolypse might have nothing to do with geo-politics. It might well come in the form of an electromagnetic storm.
It is inevitable....
it is a matter of when not if - as the saying goes.
The problem we should address is preparation and NOT prevention. I think the by far the smartest approach would be to install a back-up redundant system that remains un-connected and un-exposed to potential harm from the next EMP.