In the latest issue of the Atlantic Mark Bowden details the hunt for Abu Sabaya, leader of the group that kidnapped Martin and Gracia Burnham. It is an interesting piece of reporting. Bowden describes the cooperation between U.S. military/intelligence and Philipino Army/Marines that leads to the destruction of Sabaya's cell.

Here's the link: http://www.theatlantic.com/doc/200703/bowden-jihad