Obama gives stern warning to Assad about chemical weapons

President Obama on Monday issued a stern warning to Syrian leader Bashar Assad not to use chemical weapons against his own citizens.

A Free Syrian Army fighter aims his weapon during clashes with government forces in Aleppo, Syria, on Sunday, Dec. 2, 2012. (AP Photo/Narciso Contreras)

A Free Syrian Army fighter aims his weapon during clashes with government forces in Aleppo, Syria, on Sunday, Dec. 2, 2012. (AP Photo/Narciso Contreras)

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