To infidels, Islam is in a certain sense unknowable, and most of us are content to leave it at that. The vast majority of Muslims don’t conspire to kill cartoonists or murder their daughters or shoot dozens of their fellow soldiers. But Islam inspires enough of this behavior to make it a legitimate topic of analysis. Don’t hold your breath. We’d rather talk about anything else — even in the Army.

What happened to those men and women at Fort Hood had a horrible symbolism: Members of the best trained, best equipped fighting force on the planet gunned down by a guy who said a few goofy things no one took seriously. And that’s the problem: America has the best troops and fiercest firepower, but no strategy for throttling the ideology that drives the enemy — in Afghanistan and in Texas.