Idag bjuder Russia Today på ett inslag om de muslimer som åker från Europa till Syrien för ansluta sig till någon av de väpnade grupperna i landet.
"There are real fears that terrorists cutting their teeth in Syria could spread across the EU. Europeans make up a big chunk of the 17 thousand foreign jihadists thought to be in the war-torn country. The biggest European contributor is France. As many as 700 of its nationals could be in Syria right now. Belgium and the UK are also in the top three. The worry is what happens when they return home. RT's Sara Firth caught up with one British citizen, who lost his brother to a war thousands of miles from home."