In last month's Journal of Substance Abuse Treatment, University of New Mexico addiction specialist William Miller and his colleagues presented findings from two controlled trials in which patients underwent drug treatment. Some of the patients received spiritual guidance as part of the treatment — learning such practices as prayer, meditation and service to others, all of which are central to 12-step programs. Others received secular psychotherapy. Because of the enduring popularity of AA and similar programs that involve a spiritual component, Miller and his team expected the patients in the spiritual group to do better than those in the secular group. They were wrong — at least in the short term.