 Tapping the brakes from Riverdale through the Beltway. There is no letting up on the delays until you're well past 32. After that, all clear up to the Baltimore Beltway. Experience Ghostbusters in concert with the National Symphony Orchestra performing the score live to film coming up on Friday, July 26th at Wolf Trap. Tickets are available now at wolftrap.org. Steve Dresner, WTOP Traffic.