British jihadists the most 'vicious and vociferous' fighters in Iraq, expert warns

Britons who have joined Isis are recruiting on more young men on social media, an expert on radicalisation warns as he says British nationals in Iraq are acting as suicide bombers and operating as executioners

http://www.telegraph.co.uk/news/worldnews/middleeast/iraq/11045318/British-jihadists-the-most-vicious-and-vociferous-fighters-in-Iraq-expert-warns.html