Beck: “Our Groups Need To Make Sure That We Haven't Been Infiltrated” By “Communists Or Islamic Radicals” Written by Media Matters Staff Published 02/14/11 11:34 AM EST From the February 14 edition of Premiere Radio Networks' The Glenn Beck Program: Video file Previously: UPDATED: From CPAC Podium, Horowitz Claims There Is A Muslim Brotherhood “Infiltrat[or]” At CPAC From CPAC Podium, Horowitz Attacks ACU Board Member And Bush Appointee Khan For “Allegiance” To Muslim Brotherhood The Right's Growing Civil War