This YouTube dramatization sounds like something out of SurvivalBlog, or a novel I once read wrote: The Economic Collapse [1]. (Thank to David W. for the link.)
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Ash delays and reroutes trans-Atlantic flights [2]. (Thanks to Mike M. for the link.)
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Mat in Tennessee suggested this: Getting Prepared for an Electromagnetic Pulse Attack [3]. This is also apropos for massive Coronal Mass Ejection (CME) events.
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Allen M. flagged this: NetDISK multi-function NDAS – the ‘hack-proof’ drive [4]