This is a facinating doco seria made recently in Israel for channel 10- The reporter, an Israeli Jew which covers the Arab world for years and speaks fluent Arabic, managed to penetrate into the most radical Muslim cells operating in Europe (and carry arms), disguised as a Palestinian Muslim reporter..

During the seria,which got huge rating in Israel, he gives a brilliant review of the radical side of Islam in Europe,the mosques,studies,cells,what they think about their countries,about the west, what they feel,what they desire...

The first vid. in here is a promo, the second is an episode in which he penetrated into an extremist cell, the third vid. is about Muslim women in Europe which left their husbands and are hidden fearing for their lifes.
In the last episode btw was being exposed as an Israeli, but I only saw the promo, don't know how he managed to get out of there... :)