Q: What do we know about David Muir, the newsman for ABC? He seems to be traveling constantly. What’s his educational background? Does he have a family?

—Diane Baggett, Winston

A:

Muir, an Emmy award-winning anchor and correspondent for ABC News, is from Syracuse, N.Y., and graduated magna cum laude with a journalism degree from Ithaca College in 1995. He joined ABC in 2003 and became one of the network’s top reporters, reporting on events around the world, including China, Japan, the Middle East, South America, Eastern Europe, Africa and throughout the United States, according to Muir’s bio on ABCNews.com. Muir, 39, continues to travel to report on events, but also is the weekend anchor for “World News” and co-anchors “20/20.” Muir doesn’t mention his family in his ABC bio or on his Facebook page (

). He also has a Twitter account (@DavidMuir).

Q: Why does the FM station of WSB Radio play “WSB FM, Doraville” at the top of every hour? I haven’t switched to WSB AM to see if it says “WSB AM Doraville.”

—Gene Wallace, Lawrenceville

A: The FCC requires a radio station to identify itself by its legal name – by both call letters and city of license – at least once every hour. Because News/Talk WSB broadcasts on both 95.5 FM and 750 AM, the station must identify both frequencies legally at the top of the hour. That is why you hear "WSB-FM Doraville" and "WSB-AM Atlanta" at the start of the newscast on the hour. "WSB-FM Atlanta" is the legal name for B98.5, the station's sister music channel.

Andy Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or email q&a@ajc.com (include name, phone and city).