From $1947$ to $1951,$ the National Malaria Eradication Program $($NMEP$)$ eliminated malaria in the United States. Following this success, in $1955,$ the World Health Organization launched the Global Malaria Eradication Program $($GMEP$).$ However, by $1969$ the program failed and was suspended. Both programs heavily depended on DDT to accomplish their goals. Assuming that both programs had good strategies and funding to complete their goals, why do you think only the NMEP was successful but not the GMEP? Provide a plausible reason and your explanation. Limit your answers to the material we learned in our course. I don't expect you to know about the NMEP and GMEP beyond what is provided in this question.