Facebook, Google, and Twitter combat online extremism with targeted videos

Facebook, Twitter, and Alphabet, Google's parent company, participated in three online experiments last year to gauge the effectiveness of counter-messaging campaigns in combatting propaganda from extremist groups. The results, published on Monday in a study from the Institute for Strategic Dialogue (ISD), suggest that such efforts could be effective in reaching target audiences and driving conversations among them, though it remains unclear whether counter-narratives can actually deter radicali