ISIS has been successful in luring volunteers to its blood-soaked Sunni-based ideology from around the world with images of sex slaves, beheadings, and wanton destruction. It has created zones where people are left in ignorance and fed only their extreme interpretation the Koran. Only such people could rape, murder, and commit such wanton destruction while believing that it is not just pleasing to God but a step toward paradise.
It appears that the temple was destroyed a month ago and the fear is that the same fate may be in store for the nearby Temple of Bel, dedicated to the Semitic god Bel. Indeed, it is not clear that the temple still stands.
The image of these savages beheading archeologists and taking sledgehammers to ancient art has shaken a faith of many in the nature progression of humanity from ignorance and hate.
These acts join a long list of war crimes by Islamic State and reaffirm that this is a war against not Syria but civilization itself.