EDITOR'S NOTE — In Africa, children of the poor are commodities, often traded like cows or donkeys by adults who value their labor. This story on child maids is the third in an occasional series on the exploitation of African children. Each story stands on its own. IRVINE, Calif. (AP) — Late at night, the neighbors saw a little girl at the kitchen sink of the house next door. They watched through their window as the child rinsed plates under the open faucet. She wasn't much taller than the counter and the soapy water swallowed her slender arms. To put...