She worked at the Red Lobster in Times Square and lived with her husband near Yankee Stadium. Yet one night, returning home from her job, Odine D. discovered that African custom, not American law, held sway over her marriage. A strange woman was sitting in the living room, and Ms. D.?s husband, a security guard born in Ghana, introduced her as his other wife. Devastated, Ms. D., a Guinean immigrant who insisted that her last name be withheld, said she protested: ?I can?t live with the woman in my house ? we have only two bedrooms.? Her husband cited Islamic...