Hussein estimated that Isis rules about one-third of Iraq and one-third of Syria with a population from 10 million to 12 million over an area of 250,000 square kilometers.
I think such people are outraged by evils they have permitted themselves to see as evil, while blinding themselves to horrors they prefer not to recognize.
The more Singaporean and other coalition forces support military operations to identify and kill fighters in Afghanistan and elsewhere, the angrier these fighters will become.