The Federal Bureau of Investigation (FBI) is a U.S. government agency under the Department of Justice, tasked with investigating and enforcing federal laws. It focuses on counterterrorism, counterintelligence, cybercrime, organized crime, and public corruption. Established in 1908, the FBI has evolved to address emerging threats and employs advanced technology and intelligence to protect national security. The agency generates revenue through government funding and operates with a mission to uphold and enforce the law while ensuring public safety.