I remember Rush once saying that the liberal mind cannot conceive of good and evil. They think in terms of right and wrong. Thus, if they’re for the “right” cause it doesn’t matter how they achieve it. ISIS is just trying to achieve their cause and this is an instant where one liberal cannot comprehend another’s action because of their thinking. But they certainly can’t call it evil.
Dare I say by definition above, all terrorists are liberals and liberals are terrorists. The only difference is the matter of degree.
‘the liberal mind cannot conceive of good and evil.’ — good & evil are very well defined in Zoroastrianism. In a way GWB Broadly summarized the concept in one sentence long ago ‘you’re either with us or against us’.