Relax. Mitt's got plenty of time to launch that strike. Overall, all he's got to do tonight, is continue doing what he's done in the other two debates. He's going to stay steady, level, on point, calm, and presidential. As before, this will destabilize and alarm Barky, and he'll start sounding more and more desperate as the night wears on.
If you watch the split screen, Obama spend a lot of time blinking and staring when Mitt speaks.