Having sent 30,000 more troops to Afghanistan, President Obama conceded today that progress is "fragile." He still thinks withdrawal can begin next July, but also said the war is moving into what he called a "new phase," and that US combat forces will remain until December, 2014. Intelligence estimates say the fight will be harder than the Pentagon claims, with Pakistan refusing to shut down Taliban sanctuaries across the border. A new poll shows that 60 percent of Americans don't think the war is worth fighting. We hear how the President defines his goals as well as his strategy.