In a global period of belt-tightening, popular anger will spill over. Our correspondent visits places where powderkegs seem closest to being lit; our predictive model suggests where might be next. China’s spies have a deserved reputation for hacking and harassing—but fall surprisingly short on other spooky skills. And why America is suffering a shortfall of lifeguards. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
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