Matthew Alexander in the Washington Post:
I should have felt triumphant when I returned from Iraq in August 2006. Instead, I was worried and exhausted. My team of interrogators had successfully hunted down one of the most notorious mass murderers of our generation, Abu Musab al-Zarqawi, the leader of al-Qaeda in Iraq and the mastermind of the campaign of suicide bombings that had helped plunge Iraq into civil war. But instead of celebrating our success, my mind was consumed with the unfinished business of our mission: fixing the deeply flawed, ineffective and un-American way the U.S. military conducts interrogations in Iraq. I'm still alarmed about that today.
I'm not some ivory-tower type; I served for 14 years in the U.S. Air Force, began my career as a Special Operations pilot flying helicopters, saw combat in Bosnia and Kosovo, became an Air Force counterintelligence agent, then volunteered to go to Iraq to work as a senior interrogator. What I saw in Iraq still rattles me — both because it betrays our traditions and because it just doesn't work.