Okay, so Big Peace is a Breitbart blog. But, it contains lots and lots of links to back up the assertion that more and more youths joining acknowledged terrorist groups and fighting to bring Sharia to Europe via the Islamic State of Iraq and the Levant @ Global jihadis or al Qaeda wannabes: Who are the Islamic State of Iraq and the Levant? - World News which is certainly NOT a Breitbart site.
Read the article @ Experts Warn More European Muslim Youth Are Radicalizing