This document summarizes a research project called RADISKAN that examines discourses and effects of preventing radicalization in Scandinavia. The project aims to analyze how categories of potentially "vulnerable" individuals are created through national action plans against radicalization, despite a lack of empirical evidence supporting radicalization theories. Additionally, the project seeks to understand the impact of preventive measures on suspect groups and society, and how insecurity around radicalization affects trust within society. The researchers hope to provide an analysis of how understandings of radicalization are formulated, framed, and experienced from the perspectives of those implementing prevention efforts and those being monitored.