Maryland September 12, 2024 10:19 am Some DC-area schools on alert after social media threats None of the threats have been deemed credible. News4’s Joseph Olmo reports. Local 4:17 News4's Eun Yang shares her physical therapy journey following surgery 1:44 Workers put up fences, staging for Kamala Harris rally outside White House 2:15 DC voters cast their ballots as early voting starts 2:24 Katie Ledecky shares swimming journey with alma mater, talks life after Olympics 2:07 Why does the sky look bluer in the fall?