Neither Finland nor Sweden ever joined NATO, the Western military alliance formed in 1949: Finland for pragmatic reasons and Sweden for ideological ones. But Russia’s invasion of Ukraine has prompted both to change course. Facebook’s appeal is waning – to both users and investors. And for the first time, a telescope has captured images of the black hole at the centre of our galaxy. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer

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