'Who is she?' -- U.S. Treasury chief Steven Mnuchin takes swipe at Greta Thunberg

DAVOS, Switzerland (AP) — U.S. Treasury Secretary Steven T. Mnuchin says Swedish climate activist Greta Thunberg is in no position to give economic advice until she's gone to college and come out with an economics degree.

At a press briefing at the World Economic Forum in the Swiss town of ...