Libya and the Benghazi attack
Schieffer addresses Romney first, says Romney said it is an example of an American policy on Middle East that is "unraveling before our eyes." Asks both candidates to address this.
Romney says with the Arab Spring came a great deal of hope that there would be a change in the region toward moderation, but instead he says we've seen in nation after nation a "number of disturbing events," including in Syria, Libya.
Romney calls Iran "the greatest threat of all," saying it is four years closer to a nuclear weapon.
Romney congratulates Obama on the killing of bin Laden, but says "we can't kill our way" out of this, says nation has to have a comprehensive strategy.
Obama answers next. Says his main job as commander in chief is to keep nation safe.
Obama says al-Qaida's core leadership has been decimated, discusses turning over security responsibility to Afghan forces.
On Libya, Obama says it's important to step back and think about what happened. Says despite this tragedy in Benghazi, after the attack, thousands of Libyans marched and said "America is our friends."
He says Romney's strategy is not designed to keep Americans safe or build on progress made in Middle East.