ISIS has apparently fine tuned their hostage taking, incarceration and torture along with the beheadings. Anyone who thinks this is just some kind of splinter group that will burn out is fooling themselves. Their process has become institutionalized and is done with such regularity it must be a job for many of those people.
http://www.nytimes.com/2014/10/26/w...what-isis-hostages-endured-in-syria.html?_r=0
http://www.nytimes.com/2014/10/26/w...what-isis-hostages-endured-in-syria.html?_r=0