United States Department of Homeland Security

http://en.wikipedia.org/wiki/United...meland_Security

介紹

http://en.wikipedia.org/wiki/Homeland_Security

Central Intelligence Agency (CIA)

http://en.wikipedia.org/wiki/CIA

Federal Bureau of Investigation (FBI)

http://en.wikipedia.org/wiki/FBI

National Security Agency (NSA/CSS)

http://en.wikipedia.org/wiki/Nsa

24影集中的

Counter Terrorist Unit

http://en.wikipedia.org/wiki/CTU

Drug Enforcement Administration (DEA)

http://en.wikipedia.org/wiki/Drug_E..._Administration


From Wikipedia

如有不全請大大們補上摟!