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dr. david agus looks at the science of hangovers, hopefully the cure, too.this tuesday. thanks for watching. i'm anne-marie green. have a great day. ,, >> your realtime captioner is mrs. linda m. macdonald >>> good morning, everyone. it's tuesday, december 31. i'm michelle griego. >> hi, everyone. i'm frank mallicoat. final day of 2013. and we are going to kick it off with mr. lawrence karnow. >> then let's go big on this dame. 2013, winding down. looks like we have some clouds rolling through our skies today and looks like it will stay mild. no rain in the forecast just yet. will that change for the new year? we'll talk about that coming up. >> and the roads are nice and dry as lawrence said and everything is light, as well. of course, this is new year's eve so we are not expecting a full morning commute. we'll show you where there is overnight roadwork. >> we think you would be busier tonight than this morning here in the city anyway. >> action packed. >> thank you. >>> some developing news now in san francisco. a police officer was hurt during a high-spee