Laurence Simon makes a good point.
Tonights hostage video seen round the world features a begging and pleading South Korean citizen. Whether the begging was his idea or his captors, given the demonstrated barbarism of the scum carrying out these "kidnappings" there is no reason to cooperate.
These jihadists aren't interested in money or prison releases, just fear and PR. If, God forbid, you windup in their hands your only hope is to make a run for it when the opportunity presents itself. No matter what they tell you - you are going to die. Once you accept that fact you are free to do this.