Is It True? If So, Is It a Common Ground Problem?

We often think of people with extreme views as more passionate about them than people with moderate views. But we make a mistake when we assume that this passion translates into an eagerness to discuss. People who study radicalization of, say, terrorists note that as the subject becomes more radical in ideology, his evangelical zeal diminishes. Radicals turn inward.

Eli Dourado, "The Lonely Radicals" (via)