None of these things are cut and dry. There are all sorts of things in the background that I would guess we don't know and will never. But, I think its a safe bet to say that the taliban creeps had microchips implanted somewhere on their body. Most likely place is the rectum. When they return to their lair, they will be scanned and debugged, but at least the CIA will know where they went then a big bomb will blow them up.