Economy November 22, 2024 6:19 pm 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 0:54 Body camera video shows drunk driving arrest of Cook County elected official 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