Recruited by Al-Qaeda: Foreign Fighters in Damascus Jail Tell Their Stories

Rebels, foreign Jihadists and government troops have been condemned by a UN report - which found them all guilty of war crimes - including civilian massacres and indiscriminate shelling. Meanwhile, international mercenaries and militants continue to flood the country... convinced they're carrying out the will of God. But what forces men to such extremes? RT's Maria Finoshina has been investigating.