Francesco Antonelli is Professor of General Sociology in Political Science at the Roma Tre University. He is the coordinator of the Horizon2020 Project Participation: Analyzing and Preventing Extremism Via Participation (2020-2023) and he was work-package leader of the Horizon2020 Project Trivalent: Terrorism pReventIon Via rAdicaLisation countEr-NarraTive” (2017-2020).