OK, So What Will Define the End?

Regarding the Hamdan trial verdict Warren Richey writes in the Christian Science Monitor:

Even if he’d been acquitted of all charges, Hamdan was unlikely to be released from his Guantánamo cell anytime soon. In addition to the military commission charges, Hamdan is being held in open-ended detention as an unlawful enemy combatant.
Under the law of war, he can be held for the duration of the war on terror.

As the title says: “OK, so what will define the end.”