12/06: Will the U.S. enter Syria conflict?; details of Wash. pot legalization a little hazy

      |Whether the U.S. enters the war in Syria appears to be up to dictator Bashar al Assad and his decision on the use of chemical weapons. David Martin reports on the latest intelligence from the region; And, Washington State's new marijuana law is now in effect, making it the first state to legalize the drug for recreational use - with some restrictions. But, as John Blackstone reports, even those who are supposed to enforce the law are a little foggy on the details.

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