April 28, 2023: Northwestern to discontinue COVID-19 protocols, Nobel Prize winner set to speak at NU, a Niles senior prank gone wrong, the Mississippi River’s flooding, Ed Sheeran’s copyright case, and a Venezuelan migrant crisis. WNUR News broadcasts live at 6 pm CST on Mondays, Wednesdays, and Fridays on WNUR 89.3 FM.