The battle between cyber criminals and law enforcement (and information security professionals) the world over is a constant tug-of-war. From most perspectives, law enforcement and INFOSEC personnel are at a significant disadvantage, but occasionally we find ourselves ahead of the curve, having developed a new countermeasure or technique for prevention, detection, or investigation. When such an innovation is developed, should it be widely publicized and shared with others, or is the risk of informing the "bad guys" and allowing them to adapt or evolve their tools and techniques in response too great? How should we balance the need to collaborate and cooperate for the benefit of all with the need to maintain maximum advantage (if however slight) over our cybercrime adversaries? Discuss thoroughly.