Sen. Corker Calls On U.S. To 'Step Up' Efforts In Syria
Robert Siegel talks to Sen. Bob Corker of Tennessee, who is the ranking member of the Foreign Relations Committee, about the U.S. intelligence assessment regarding chemical weapons in Syria. Corker says there is not yet enough evidence to take military action against the Syrian government. He adds that the real challenge now is to keep the more extremist anti-Assad-regime rebels from having the upper hand.
