If you read politics on Twitter, you would have recently seen that Republicans in the U.S. Congress are going to impeach President Obama if they get enough seats in November, so it is vital that Democrats win elections. 

DDT, the first modern pesticide, has been banned in the United States since 1972 but it is still commonly used in places where malaria is prevalent. The United Nations recommends it because it is far less harmful to people than malaria is and remains superior to replacements. Malaria drugs have become less effective over time so it's better kill pests before they infect people.