Despite high expectations of their normative roles in development processes, Vietnamese science journalists interviewed for this research essay find it extrememly hard to enact such roles, facing an uphill battle to establish science as a legitimate news beat. This results from a diverse set of internal impediments (particularly a science-unfriendly news culture and low ethical standards) and external obstacles, including political control and low cooperation of local scientists. Placing these findings in the wider context, we demonstrate that Vietnam illuminates many troublesome characteristics of science journalism in the Global South and make some recommendations for improving the status quo.