They connect via online services — especially Twitter — and in everyday life. Their ages range from 15 to 47, and their roles range from cheering attacks to plotting violence. And curbing their growth is a dynamic challenge without a simple solution: There are currently 900 active investigations into ISIS sympathizers in every American state. Those are some of the findings of a new study that glimpses life "inside the bubble of American ISIS sympathizers, a diverse and diffuse scene that the FBI estimates include hundreds, if not thousands, of individuals." Titled "ISIS in America: From Retweets to Raqqa," the...
