Syria bolstered security around the U.S. embassy in Damascus after Monday’s attack by a pro-government mob on the compound drew worldwide rebuke. After weeks of restrained U.S. reaction to Syria’s brutal crackdown on democracy protestors, diplomatic exchanges between the countries are now tense. Secretary of State Hillary Clinton said Syrian President Bashar al-Assad “has lost legitimacy” and was “not indispensable.” Some believe this change in tone could indicate a policy shift. Joshua Landis, author of the blog “Syria Comment” and director of the Center for Middle East Studies at the University of Oklahoma, joins us to talk about the ongoing unrest in Syria and the possibilities for any U.S. or NATO intervention.