Why does Ginger use DEA as her cover in Swordfish?

For a movie about hacking, technology, terrorism and patriotism, why in the world does Ginger use DEA as her cover when talking to Stan?

DEA - Drug Enforcement Agency. The movie never once mentions drugs. While I understand that Stan has no knowledge of Gabriel, the story could hold up but Stan comes to learn all about Gabriel and his plans which don't include drugs. Plus, when Stan first meets Gabriel in the club, he wants him to hack into the DoD (department of defense).

At the end when Gabriel shoots Ginger, he tells Stan, "She was DEA".

Was this explained somewhere in maybe a directors cut or a book? Homeland security, FBI, CIA, ATF - those all make more sense. So why DEA?

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