Daria Gibron is a freelance agent.
She used to work for Shin-Bet, the Israeli internal security organization, and she was very, very good at it. Now, for some quite good reasons, she is not. As we are told in the description of one of her adventures:
"A former Shin-Bet agent now in exile in the U.S. and under the protection of the F.B.I., she works primarily as an interpreter. But Daria is a thrill junkie who can't resist the occasional freelance job as an operative—a habit that has left her with a trail of corpses behind her, and a few still living, very dangerous, high-powered enemies who would stop at nothing to get revenge."