. . . a barbarian. The thing he attacked is . . .
. . . civilization itself.
Calling his crime a "tragedy," expressing puzzlement about his motives, fumbling (as our president did and does) to find words to describe his actions and explain their meaning, and straining not to mention or contemplate his medieval religious, cultural, and political beliefs -- these are the responses of a culture that has lost confidence in itself and the values of its own civilizational order.
The Clever People who would govern us are frankly weary of their own heritage. They respond to Mr. Hasan, not with the fury he deserves, but with mental and moral confusion about, among other things, the nature and existence of evil. And with something not far removed from inchoate shame.