Moriba Freeman’s daughter Yamah Freeman, in yellow in the photograph he’s holding, died during childbirth in Bong County, Liberia.Credit...Saidu Bah for The New York Times

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By Nicholas Kristof

Opinion Columnist, reporting from Makeni, Sierra Leone

On the edge of a lush jungle here in West Africa, the heavy metal doors of a warehouse creak open. Inside are boxes piled high with millions of doses of medicines donated by Merck and other pharmaceutical companies for a United States aid program. Yet the medications are gathering dust, and some are approaching their expiration dates and may have to be destroyed, at immense expense.