Mr. Khan is the C.E.O. of Khan Academy and the vision steward at TED, both nonprofits that provide free online education for more than 200 million learners globally. On my way to meet a friend in ...

What's CODE SWITCH? It's the fearless conversations about race that you've been waiting for. Hosted by journalists of color, our podcast tackles the subject of race with empathy and humor. We explore ...

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An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...