 WFUD Washington. WTOP FM HD 2 Washington. W283 DG Sterling. WTOP FM HD 2 Braddock Heights. WWW TFM HD 2 Manassas. Portions pre-recorded. This is CBS News on the Hour, sponsored by Progressive Insurance. I'm Heather Bosch. Scorching temperatures in much of the U.S. have killed one person in California's Death Valley National Park. CBS's Carter Evans says that person was riding