About Face: Pentagon Shifts Command in Afghanistan

The Pentagon has asked for the resignation of General David McKiernan, the commander of U.S. and NATO forces in Afghanistan. McKiernan will likely be replaced by Lieutenant General Stanley McChrystal, a former special operations commander chosen by Defense Secretary Robert Gates. So what does the shake-up indicate about U.S. military strategy in Afghanistan? The Takeaway talks to Retired Air Force Colonel Sam Gardiner. He’s taught strategy and military operations at the National War College.