Triple Agent by Joby Warrick

On December 30, 2009 a Jordanian Physician posing as a double agent blew himself up at the Khost Army base in Afganistan taking with him a number of CIA agents who were hunting down Osama bin Laden and other el-Kaida terrorists. The CIA was so anxious to follow any lead that it let its guard down after receiving useful tidbits from what turned out to be a triple agent working for the enemy. A number of good people were lost. The war on terrorism is now pitting unmanned aircraft against fanatical suicide bombers.

Stuart