World Economic Forum Wants Tech Firms to Fight Extremism

U.S. tech firms such as Facebook Inc. and Twitter Inc. should be more aggressive in tackling extremism and political misinformation if they want to avoid government action, a report from the World Economic Forum said. The study from the Swiss nonprofit organization adds to a chorus of calls for Silicon Valley to stem the spread of violent material from Islamic State militants and the use of their services by alleged Russian propagandists.