America Leaves Iraq: Is the Mission Accomplished at Last?

President Obama did not say "mission accomplished," but he did say yesterday that all combat operations in Iraq will end this month, as he promised. Fifty thousand American troops will remain, but the State Department will lead what's become a civilian effort, using the biggest embassy in the world. But Iraq has no permanent government. There's disagreement over how much violence has really declined and fears it will increase when US troops are gone. Is the US still relevant? What about Iran? How do Iraqis feel about America's role, and what's the future for five million displaced people?