 District leaders are putting drivers on notice. Next week, NATO's summit in Washington will impact traffic heavily. Violence broke out today at Metro Center. A man was stabbed multiple times in a fight on the station platform and taken to the hospital in critical condition. The suspect is under arrest. Keep it here for full details on these stories in the minutes ahead. Traffic brought to you by Navy Federal Credit Union. Proud to serve members of the Armed Forces, DOD, veterans and their families. Our members are the mission. Learn more at NavyFederal.org.