%0 Journal Article %T Mobilizing Grievances in an Authoritarian Setting: Threat and Emotion in the 1953 Plze¨¾ Uprising %A Alison E. Adams %A Laura A. Bray %A Thomas E. Shriver %J Sociological Perspectives %@ 1533-8673 %D 2019 %R 10.1177/0731121418791771 %X Material and physical threat can play a crucial role in the emergence of protest, yet few studies have explored the micro-level mechanisms that transform threat into collective action under repressive conditions. We address this gap by connecting the mobilizing power of grievances to the emotional dynamics of collective action in the context of a 1953 uprising in Communist Czechoslovakia. Following economic reforms that wiped out citizens¡¯ savings, several thousand workers in the industrial city of Plze¨¾ took to the streets in protest. Drawing on data from in-depth interviews, our analysis shows how structural and incidental grievances can become a mobilizing force for high-risk activism. We find that the class position of protesters influenced their preexisting affective state and reactive response to the reform. As a result, class background helped to shape protesters¡¯ motivations, actions, and goals. We conclude by discussing the implications of our findings for future research %K collective action %K high-risk activism %K grievances %K emotions %K labor protests %K historical sociology %U https://journals.sagepub.com/doi/full/10.1177/0731121418791771