A growing body of research in psychology and behavioral economics suggests that a great deal of everyone’s behavior happens intuitively and automatically, with little deliberate thought. In this paper, Jens Ludwig and Anuj Shah propose a five-year strategy for scaling out behaviorally informed interventions—such as the “Becoming a Man” (BAM) program —to help disadvantaged youths recognize high-stakes situations in which their automatic responses could be maladaptive and may lead to trouble.