Explains the office of the presidency in the United States, including its history, how presidential elections are run, and the kinds of things the president is responsible for.
Discusses the use of unmanned aerial vehicles known as drones, from the aircraft's military uses to its emergence in the private sector, and describes how drones can be used for environmental protecti
Explains how the United States Supreme Court works, including its history, how the court system works, and important judges who sat on the Supreme Court.