Domestic extremism: how big is the threat?

Abstract

"Many extremist groups have emerged in recent years. Moreover, many individuals harbor extremist viewpoints and have taken action on their own. They do this to call attention to their beliefs, cause chaos, and very often commit acts of violence under the misguided notions that their causes are justified and would find widespread acceptance by the American people. Very often, though, these extremists ultimately find themselves sharing prison cells"--