For all the American and international efforts to fight global poverty, one thing is clear: Those efforts won’t get far as long as women like Nahomie Nercure continue to have 10 children. [...] As we walked through Cité Soleil, the Haitian slum where she lives, her elementary-school-age children ran stark naked around her. The $6-a-month rental shack that they live in — four sleep on the bed, six on the floor beside it — has no food of any kind in it. The family has difficulty paying the fees to keep the children in school. There’s simply no way to elevate Nahomie’s family, and millions like it around the world, unless we help such women have fewer children.