On the ground, Ukrainian resistance is holding—so far—and Vladimir Putin’s nuclear posturing reveals a crumbling of his plans. Meanwhile the international response grows more serious and more united. We examine President Joe Biden’s savvy Supreme Court pick, Ketanji Brown Jackson. And how to get around the fact that eyewitness testimony can be fuzzy or change over time. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
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