Much like Ukraine, Taiwan has a well-armed neighbour that does not think it exists as a state: China. We ask what both sides are learning from Russia’s invasion. A heavy-handed string of arrests following a flare-up of gang violence in El Salvador is unlikely to change matters. And an analysis reveals the connection between weather and whether voters support climate-change legislation. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
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