Is the sunlight-mortality link causal or correlational?

Russia’s dark-fleet maritime operations and brazen incursions into NATO airspace appear to be precision-engineered to test Western resolve. We ask how this new phase of aggression may end. Our correspondent reports from Madagascar, where young people are leading unprecedented anti-government protests. And a return to the topic of sunlight’s benefits: we sift through the mailbag of listeners’ questions and comments.

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