Barton Gellman and Dana Priest tell a pretty good story about the capture, and the intelligence that was gathered, or how the oinion was peeled back. By early December we started focusing on those people most likely to help him, especially those tied by blood and clan. It seems that we started interrogating--seemingly--unimportant distant family members, or members of tribes who had helped him in the past, and just kept narrowing the circle. Eric Schmitt of the N.Y. Times writes on essentially the same theme, and to the same effect.