One of U.K.’s Most Prolific Extremist Cells Is Regrouping The security services have expressed alarm at the prospect of the extremist group Al Muhajiroun re-energizing with ISIS fighters returning from Iraq and Syria. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:‘Modern Slavery’ Ring in U.K. Ensnared up to 400 Polish People, Authorities SayMexico’s Federal Police Rebel Against New Security PlanHong Kong Celebrities Who Support Protests Pay a Heavy Price From ChinaIn Sudan, a Secret Meeting and Public Rage Propelled a Power-Sharing DealTunisia Bans Full-Face Veils for Security ReasonsA Clash of Worldviews as Pope Francis and Putin Meet Again