Fully hardening the electrical grid will take decades. Geopolitically, the window for an EMP attack on the US is much shorter, likely within the next 10 years (presuming the dissolution of the Chinese and No. Korean regimes); so, were it to happen, we won’t be prepared. It’s a worrisome thing, but seems unlikely due simply to the threat of US retaliation, which would dwarf the EMP attack. Then again, who knew we’d be in a pandemic lockdown? But even that is a kind of evidence against the thing: The very fact that we’re discussing it makes it unlikely – these kinds of surprise events are just that, surprises, things no one foresaw. That’s not a proof it won’t happen, but I think it’s rare historically that the blow that was imagined is the one that strikes.
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