Shooting on Metro Red Line train causes service delays: https://wtop.com/tracking-metr....o-24-7/2020/12/shoot
Aa FBI agent shot someone on Metro at the Medical Center station which serves Bethsda Naval / Walter Reed / NIH. We should be concerned about more than "service delays."
Edit: I don't know for sure who the shooter was; maybe the FBI person was the one who was shot. Still...it's a curious location. This part of the red line is usually pretty quiet and safe.