Is it generally rational to defer to official stories? On the affirmative view exemplified by Neil Levy, grounds for scepticism cannot outweigh the epistemic authority of the experts presumed to generate them. Yet sociological studies of how expertise is mediated into official communications reveal the epistemic potential of citizens’ collaboratives. These may include, or advocate hearing, dissident experts. Such groups’ epistemic position is arguably analogous to that of the ‘other institutions of civil society’ that Levy sees as underwriting the authority (...) of official stories. An added advantage is that they are able to adhere to deliberative methods of inquiry. By contrast, an official story presupposes that deliberations have concluded, and what remains is to promote the agreed story. This is achieved by strategic communication, which can involve extensive coordination by organisations committed primarily to persuasion rather than truth-seeking. Sometimes it includes blocking dissidents’ deliberative challenges. A case study highlights how even an organisation of indisputable epistemic authority can be politically influenced to block the testimony of its own scientific experts, while uncritical support for its official story is maintained by other institutions of civil society. Hence, an appropriate attitude towards official stories is critical receptiveness rather than automatic deference. (shrink)