Correct! DDT was used during World War II among Allied troops and civilian populations to control insect typhus. DDT is still used in some countries against malaria vectors and it has also been used as an agricultural insecticide since 1945. Researchers demonstrated that the insecticide destroys the wildlife, biomagnifies, and accumulates in the fatty tissues of animals and humans and may result in cancer and genetic damage. The marine biologist Rachel Carson brought the dangers of the pesticide to public attention in 1962 with her book Silent Spring, in which she questioned humanity's faith in technological progress and helped set the stage for the environmental movement.