This document discusses radicalization and insider threats in the workplace. It defines radicalization as adopting extreme political, social, or religious ideals that justify violence. Recent events have increased executive concerns about workplace violence and radicalization. Radicalization can manifest as a violent act supported by an organization or as the result of an openly stated goal. Individuals may be radicalized through narrow indoctrination and exposure to inevitable catastrophic events. The document outlines different types of threats - violent extremists, homegrown violent extremists, and domestic terrorists. It discusses drivers of radicalization like personal, group, community, and ideological factors. The document emphasizes detecting and investigating insider threats early to prevent harm.