Fast & Furious keeps getting worse
The LA Times has the story. As previously noted, the key target actually was apprehended inside the US, about six months into F&F, but released to return to Mexico on a promise to cooperate. (Reports that the ATF supervisor made him swear "cross my heart and hope to die / stick a thousand needles in my eye" have not been confirmed.)
It gets worse. The supervisor was hoping he'd lead them (because even a cartel supplier can't break a "cross my heart" promise) to two higher ups.
It turns out the two higher-ups were informants working for the FBI....