nsa
The official pollution watchdog agency is the Environmental Protection Agency (EPA)
FDA
CIA
Drug Enforcement Agency
That would be the CIA which stands for the Central Intelligence Agency.
International Atomic Energy Agency
The primary federal taxing agency is the Internal Revenue Service, abbreviated as IRS.
That would be FEMA which stands for the Federal Emergency Management Agency.
Central Intelligence Agency. Good Luck Dude.
FSB
ARPAnet = Advanced Research Projects Agency Network.