January 16, 2020 In recent years, deadly white supremacist violence at houses of worship in Pittsburgh, Christchurch, and Poway demonstrated the clear line from violent hate speech and radicalization online to in-person violence. With perpetrators of horrific violence taking inspiration from online forums, leveraging the anonymity and connectivity of the internet, and developing sophisticated strategies to spread their messages, the stakes couldn’t be higher in tackling online extremism…