 for everyone to try to find some relief. Earlier in Fairfax County, the public school system canceled all outdoor activities as a precaution with the high heat, the dangerous humidity. Keep it here on WTOP for traffic and weather on the 8s. Another update for you in about three minutes. Carjackings appear to be trending down in the district. WTOP's Shana Astulin reports on new numbers from the Office of the U.S. Attorney for D.C.