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:Russia Blocks Venezuela Measure at U.N., Calling It a U.S. Ploy for Regime ChangeNorth Korea, Michael Cohen, Bryce Harper: Your Thursday Evening BriefingTrump Declares ISIS ‘100%’ Defeated. That’s ‘100% Not True,’ Ground Reports Say.News Analysis: Netanyahu Responds: What He Said and What He MeantNews Analysis: Netanyahu Responds: What He Said and What He MeantMexico Approves 60,000-Strong Security Force. Critics Call It More of the Same.