Closing Thoughts and Advertisements for Health and Trading Innovations

Few believe President Joe Biden’s withdrawal plan is wise; it is already prompting allied forces to go. We ask about the risks of that untimely vacuum. Much climate-change angst focuses on carbon dioxide, but addressing sources of methane would be an easy way to slow warming—and even to save money. And Bhutan’s world-beating vaccination drive took just one week. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer

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