Iraqi and U.S. forces zeroed in Abu Musab al-Zarqawi several times over three years only to see him narrowly escape. In the end, his own terrorist network betrayed him. The hunt closed in two weeks ago, when an insider from al-Zarqawi’s network helped identify a spiritual adviser who unwittingly led the Americans to his doorstep, prompting the airstrike that killed Iraq’s most wanted militant. Full Story