According to Iraqi reports, ISIS has executed hundreds of Muslim women and their relatives for refusing to marry ISIS fighters. ISIS has brutal disregard for women within its territorial control.

Since 2014, ISIS has demonized, threatened and persecuted religious minorities. This report explores the ideological justifications for ISIS’s violent campaign to target—and ultimately eliminate—other religious communities.

ISIS exploits pre-existing religious and social biases against gay people among the populations under its control in order to justify their persecution.

CEP has analyzed attacks carried out by al-Qaeda and ISIS operatives in the United States, Europe, and Australia. This report explores the ideological and tactical rationale for selecting targets to attack.

Siege is an anthology of violent pro-Nazi and pro-Charles Manson essays written by American neo-Nazi James Mason in the 1980s and first published as a single volume in 1992. The book has since inspired a generation of neo-Nazis who have formed a violent online subculture.

Technology companies often justify their inaction in the face of widespread misuse of their services by citing free expression and/or privacy concerns. This report seeks to analyze the validity of such claims.

Ayatollah Ruhollah Khomeini’s Islamist, populist agenda—dubbed “Khomeinism” by scholar Ervand Abrahamian—has radicalized and guided Shiite Islamists both inside and outside Iran.

This resource identifies 131 American, Canadian, Australian, and European converts to Islam from diverse backgrounds who have become or attempted to become extremist propagandists or recruiters (13), foreign fighters (53), or domestic terrorists (74).

CEP’s Extremist Hubs resource examines a list of the neighborhoods, cities, and states that Western news outlets, mayors, and other government officials have labeled as “hotbeds of extremism” or “extremism hubs.”

U.S.-born al-Qaeda extremist Anwar al-Awlaki has for years served as a radicalizing figure for U.S. and European extremists. CEP has counted 99 extremists—56 U.S. extremists and 43 European extremists—with ties to Anwar al-Awlaki.

CEP has worked to outline and compare Internet and technology companies’ approaches to extremist content as it may appear on social media, messaging applications, websites, blogs, and video-hosting websites, among other platforms.