Demonstrations against police violence have only amplified. We ask why George Floyd’s death touched a nerve, and why these events keep happening in America. A look at the country’s cyber-defences reveals considerable weaknesses—what are states to do as electronic attacks outpace the conventional kind? And what museums are doing now to document the history unfolding around them.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer
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