U.S. attorneys are federal prosecutors who represent the United States in legal matters. They work in various districts across the country and are responsible for prosecuting criminal cases, handling civil litigation, and enforcing federal laws. Each U.S. attorney is appointed by the President of the United States and confirmed by the Senate. There are 94 federal judicial districts, each with its own U.S. attorney. These attorneys collaborate with federal law enforcement agencies, such as the FBI and DEA, to investigate and prosecute cases involving drug trafficking, fraud, and other federal offenses. Their role is crucial in maintaining law and order at the federal level.