Nuclear diplomacy.

The director of the International Atomic Energy Agency Rafael Grossi is a nuclear inspector, he told The New York Times, but he's also one of very few people talking to Putin and Iranian leaders.

This look at Grossi's role by WH and national security reporter David E. Sanger has climate implications: Nuclear's ability to be a clean energy powerhouse depends on the industry's safety record.

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Cat Clifford

Senior Science and Economics Correspondent