In the USA and in the EU all organizations want to become political actors. But what is an actor? Who knows (Meyer, 2000)? This profound uncertainty both constrains and facilitates mobilization within groups and organizations to attain the status of actor and to gain recognition as such by others, thus marking a strong dependence on outside models of legitimation. More generally, the actors mobilize to gain recognition as actors. Internal mobilization towards this status meets outside injunctions and produces a dynamic system driven by all sorts of models and norms.