Many environmentalists insist on a complete ban of the pesticide DDT, as it has well-documented negative environmental effects, especially on avian predators that are relatively high in the food...

Many environmentalists insist on a complete ban of the pesticide DDT, as it has well-documented negative environmental effects, especially on avian predators that are relatively high in the food chain. Many African countries in the malaria belt, on the other hand, believe that DDTimpregnated bed nets are the only immediate, inexpensive, and effective protection against malaria, especially in children. Who is right, and why?