Economy 20 hours ago The Brief: What is a tariff? As President-elect Donald Trump floats the use of tariffs for his economic policy, NBC Chicago’s Mary Ann Ahern explains more about what a tariff is. Local 3:51 Can toxic chemicals in your clothing make you sick? 2:02 Senior citizens targeted in series of Chinatown armed robberies 2:15 Chicago's Christmas tree lit up for the holiday season 13:08 Happy to Report: Your dose of good news for the week 1:12 Official Chicago Christmas tree lit as holiday season begins
