The Federal Bureau of Investigation (FBI) is a law enforcement agency of the United States government that operates under the jurisdiction of the Department of Justice. The FBI's mission is to protect and defend the United States against terrorism and foreign intelligence threats, to uphold and enforce the criminal laws of the United States, and to provide leadership and criminal justice services to federal, state, municipal, and international agencies and partners. The FBI's responsibilities include investigating a wide range of criminal activities, such as terrorism, cybercrime, public corruption, white-collar crime, organized crime, and violent crime. The FBI also plays a critical role in intelligence gathering and analysis, both domestically and internationally, in order to detect and prevent threats to national security. To accomplish its mission, the FBI employs a range of investigative and intelligence-gathering techniques, including undercover operations, electronic s...