The Obama administration fears that the beleaguered Syrian regime may unleash chemical weapons on rebels who are pressing their campaign closer to the capital of Damascu. "I think there is no question that we remain very concerned, very concerned that as the opposition advances, in particular on Damascus, that the regime might very well consider the use of chemical weapons," Defense Secretary Leon Panetta said today. "The intelligence that we have causes serious concerns that this is being considered," he said.

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