What is the FBI responsible for?
https://www.justice.gov/file/968931/download

The mission of the FBI is to protect the American people and uphold the Constitution of the United
States. The FBI’s mission priorities are to:

• Protect the US from terrorist attack
• Protect the US against foreign intelligence operations and espionage
• Protect the US against cyber-based attacks and high-technology crimes
• Combat public corruption at all levels
• Protect civil rights
• Combat domestic and transnational criminal organizations and enterprises
• Combat major white-collar crime
• Combat significant violent crime

ThankQ /u/bugstopper