His argument looks beyond narrow debates over whether Mohammed's trial will risk acquittal or promote grandstanding or whether he should be executed. By arguing that a civilian trial for Mohammed is good for national security and for the war on terror, he reconciles concerns about the rule of law and keeping Americans safe. It's not for nothing that three Atlantic bloggers of varying ideology all felt compelled to endorse and quote his post at length.
In political terms, the right likes the war idea because it involves taking terrorism more "seriously." But in doing so, you partake of way too much of the terrorists' narrative about themselves. It's their conceit, after all, that blowing up a bomb in a train station and killing a few hundred random commuters is an act of war. And war is a socially sanctioned form of activity, generally held to be a legally and morally acceptable framework in which to kill people. What we want to say, however, is that this sporadic commuter-killing isn’t a kind of war, it’s an act of murder. [...]
After all, do we really want to send the message to the world that a self-starting spree killer like Nidal Malik Hasan is actually engaged in some kind of act of holy war? [...] Insofar as possible, we want to drain anti-American violence of the aura of glory. And that means by-and-large treating its perpetrators like criminals.