IS: Usuing Hostages As Weapons Of War?

The group which calls itself the Islamic State beheads a third Western hostage. British Prime Minister David Cameron has condemned the group which calls itself the Islamic State for killing a British aid worker David Haines, the third such killing in recent weeks.

Cameron said: "The fact that an aid worker was taken, held and brutally murdered at the hands of ISIL, sums up what this organisation stands for. They boast of their brutality, they claim to do this in the name of Islam. That is nonsense, Islam is a religion of peace. They are not Muslims, they are monsters."

The 44-year-old father-of-two was working for a French aid agency when he was kidnapped in Syria in March 2013.

He was killed in the same manner as US journalists James Foley and Steven Sotloff, who were also abducted in Syria, and by the same abductor: a masked man with a British accent.