WNUR News’ Daily Briefing – February 22, 2023: Medill’s new security measures, Chicago Mayor Lori Lightfoot faces criticism, Vanderbilt abuses ChatGPT, national winter storm expected, Turkey earthquake leaves many injured. WNUR News broadcasts live at 6 pm CST on Mondays, Wednesdays, and Fridays on WNUR 89.3 FM.