The Drug Enforcement Administration (DEA) is a law enforcement agency contained under the United States Department of Justice. The agency is tasked with combating drug smuggling within US soil, a responsibility which it shares with the Federal Bureau of Investigation (FBI), however it is the sole organization with responsibility for pursuing these duties abroad.
Carina is a notable DEA agent, first appearing in "Chuck Versus the Wookiee", where she tricks the team into helping her steal a diamond from notorious drug smuggler Peyman Alahi, before taking it for the DEA. She appears again in "Chuck Versus the Three Words", where she pretends to fall in love with arms dealer Karl Stromberg.