if i was in power, i would find emwazi's family, make a video stating that if he doesnt give up his hostages and hand himself in then we will hang 1 family member per day till he is found.
Would YOU come out and publicly announce your relationship with someone like this? hell naaaaw..
But yeah, great plan, let us the so called civilized nation, kill his family who are INNOCENT non combatants, and not expect him to then go and do worse??