DAKAR, Senegal (AP) - In Niger, a desert country twice the size of Texas, most of the 11 million people live on a dollar a day. Forty percent of children are underfed, and one out of four dies before turning 5. And that's when things are normal. Throw in a plague of locusts, and a familiar spectacle emerges: skeletal babies, distended bellies, people too famished to brush the flies from their faces. To the aid workers charged with saving the dying, the immediate challenge is to raise relief money and get supplies to the stricken areas. They leave it to...