Pretty stupid. I think he feels bound to some of his louder campaign promises. And another one is coming up, and that is to add significantly more troops in Afghanistan.
That might be good move, but I don't believe for one second that Obama has any real commitment to that cause. During the campaign, he had made so much of his early opposition to Iraq, that it was wrong from the start, that I think he threw out the "more troops in Afghanistan", and he'd find bin Laden BS just to avoid sounding anti-military and like a typical, wimpy Dem on foreign policy.
I think he said several things purely as campaign tactics, but he might feel bound by some of them.
Rush Limbaugh said yesterday that the whole thing was political, political, political. He said it wouldn’t happen for another 4 years and BHO was only making the statement by signing the EO as a political show to his fans.