From what I've heard, the most effective technique used in Iraq so far, was that employed by a Lt. Col. who knew that his men had been targeted for a terrorist attack about to take place, and who had a terrorist in custody. The terrorist wouldn't talk, until the chicken colonel pushed the prisoner's head down in the sand, and fired his gun into the sand, inches away. Then the prisoner was most cooperative, and "shared" information that saved GIs' lives. Of course, the colonel was arrested.
What if the stupid antics of the REMF's was the cause of the outbreak of Hostage Taking in April?