Communities and clin igss and governments and others needs to know what works in order to know what to implement more widely. A number of questions arose, how do we do that . How do we know how communities define what works . Thats not always the same as the way researchers define what works. How do decisionmakers define what works and how do the different perspectives intersect . Finally as i mentioned, they noted there were two studies of interventions with the rigorous evaluation. Opportunities that we see from the u. S. Perspective for building on communities, first of all acknowledging that these kinds of problems need shared knowledge and tailored efforts. But when were tailoring intervention interventions, how can we be sure that others are learning from those interventions . If they are successful, whats required for implementation. And once an intervention is implemented, how can one ensure that the intervention can be sustained . So how can the results of successful intervent