Synopsis CBS News Radio provides material to an estimated 700 stations across the country and is known best for its top-of-the-hour news roundups. CBS News said on Friday it will shut down its storied radio news service after nearly 100 years of operation, ending an era and blaming challenging economic times as the world moves on to digital sources and podcasts. Said longtime CBS News anchor Dan Rather: “It’s another piece of America that is gone." When it went on the air in September 1927, the service was the precursor to the entire network, giving a youthful William S. Paley...