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Some fret that too much digital payment leaves Europe dependent on the likes of Visa and MasterCard, American firms with unpredictable political masters. (The ecb is mulling a “digital euro” in response, though that will take years.) In the Baltics and Nordics, where angst focuses on Russian sabotage, digital payments systems now work for a time even when power is cut. But nothing beats cash when it comes to resilience. Swedes have long been advised to store enough in notes and coins to get through a week, a move the eu now recommends.
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