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Many prevention and countering of violent extremism experts place too much emphasis on the radicalising power of online mass distributed messaging by violent extremist groups. Instead, Nafees Hamid argues that radicalisation takes place in a social ecology within which the messaging of terrorist groups plays only a small role. This article shows that people are resistant to mass persuasion and that certain environments are more conducive to the spread of extremist messaging. Small-group dynamics are useful to explain the spread of ideas and that altering these dynamics can provide a buffer against some ideas while enabling others.

International humanitarian law provides foundational norms which are to be observed by states in order to protect civilians from the harsh realities of war. These norms have been applied to traditional kinetic methods of warfare but as technology advances at a rapid pace so too do methods of warfare. As weaponry becomes more sophisticated it is necessary to revisit the foundational principles of international humanitarian law and apply them to situations that could only previously have been imagined. The principles of distinction is a core principle of this branch of law and it is not to be disregarded as a result of the fact that it predates modern methods of warfare but rather it is to be re-examined, its importance observed and applied to the warfare that we are faced with today. Protecting civilians has been of utmost importance in recent history and the development in the technology of weapons should not change that fact in the present or future.

VOX-Pol Blog post.

Much qualitative research has drawn an association between social media and domestic terrorism, with the studies reaching different conclusions. However, few empirical studies have evaluated whether the surge in social media participation affects domestic terrorist events. Controlling for common explanations in the literature, we conduct a cross-national, time-series analysis of up to 151 countries from 2000 to 2019 to assess the impact of social media penetration on domestic terrorism. We find that greater social media penetration increases the likelihood of domestic terrorism in countries as it supports extremists’ ability to recruit, mobilize, and train terrorists. Using mediation analysis, we also find that greater social media penetration amplifies online and political polarization, increasing the likelihood of domestic terrorism events. Our work indicates the possible mechanisms linking social media and domestic terrorism and the need to develop and apply appropriate counterterrorism strategies to mitigate terrorist operations.

The paper investigates the potential effects user features have on hate speech classification. A quantitative analysis of Twitter data was conducted to better understand user characteristics, but no correlations were found between hateful text and the characteristics of the users who had posted it. However, experiments with a hate speech classifier based on datasets from three different languages showed that combining certain user features with textual features gave slight improvements of classification performance. While the incorporation of user features resulted in varying impact on performance for the different datasets used, user network-related features provided the most consistent improvements.

From March 8 to June 8, 2018, the Counter Extremism Project (CEP) conducted a study to better understand how ISIS content is being uploaded to YouTube, how long it is staying online, and how many views these videos receive. To accomplish this, CEP conducted a limited search for a small set of just 229 previously-identified ISIS terror-related videos from among the trove of extremist material available on the platform. CEP used two computer programs to locate these ISIS videos: a web crawler to search video titles and descriptions for keywords in videos uploaded to YouTube, and eGLYPH, a robust hashing content-identification system. CEP’s search of a limited set of ISIS terror-related videos found that hundreds of ISIS videos are uploaded to YouTube every month, which in turn garner thousands of views.