the neighborhood. is that even legal?! ♪ ♪ l.aptioning sponsored by cbs >> dickerson: a warning from the surgeon general. substance abuse will strike one in seven americans. he wants a revolution in how we treat it. siso tonight, the trump transition. big names floated for big jobs, but is the president-elect saving one of the biggest for res son-in-law? >> jared is a very successful real estate person, but i actually think he likes politics more than he likes real estate. >> dickerson: and, tales of two species. climate change could wipe out africa's gorillas-- >> and they're not in control of events, but they're the potential victims of them. >> dickerson: --while america's buffalo make a thunderous comeback. >> it's an adrenaline-kicking son of a gun, i'll tell you that as a fact.