“But a nuclear EMP not only would cripple our power grid, but it also could fry most solid-state electronic devices (e.g., in all modern cars) under its “umbrella” — unless those devices had been suitably shielded, grounded and otherwise hardened. “
‘most’ = possibly some
And a Faraday cage yes, but grounding doesn’t do squat...
>> a Faraday cage yes, but grounding doesn’t do squat <<
I ground all of my Faraday cages!
(All of those grounds are connected to one another via no. 6 AWG cable, plus being connected to the main electric service ground, per the NEC. And for good measure, all of the above are connected to a separate 8-foot copper grounding rod that’s as close as possible to the Faradays.)