coronavirus September 17, 2021 11:45 am Great Cats at National Zoo Test Presumptive Positive for COVID-19 Six African lions, a Sumatran tiger and two Amur tigers tested positive for the virus that causes COVID-19 after showing symptoms. Local 2:02 Mother of slain Dunbar High student fights for justice 26:01 Biden, Trump agree to 2 debates: The News4 Rundown 2:04 Rockville mom's ‘grandkid investigator kits' allow children to develop deeper understanding of grandparents 2:39 States must see if bridges need more protection, NTSB chair testifies 2:22 Employees say impending unionization prompted DC cafes to close