I'd say by how quickly she killed the cowboy after he guessed it, that she's still working for the CIA. My question is how many members of the Church of Violence work for the CIA? Is it just Eda, is it some, or is it everyone? Thinking back on the machine gun guy at the beginning of this arc, he had a "new recruit" feel to him. Combined with Eda's acknowledgement, it makes me wonder if he really was just transferred from the States.

Now I'm really wondering about Revy's past. We know she grew up in America, and I'm guessing she met Eda there rather than in Roanapur. From the looks of it, her and Rock are going to Japan, maybe we'll get some Revy info in the next arc.