Not that this is you, but my parents have 24 hour cable news on... uh, all the time. Like, ALL the time. I'm not a big TV watcher, I work from home, and prefer the peaceful quietness that occurs when my kids are all at school. If I have any noise it's typically music, Pandora or a record. But when I'm at their house visiting -- that news is.always.on. In the kitchen, in the office, in the family room.... sometimes all 3 TVs are on at the same time whether someone is watching them or not. Ahhh!! When they come here to visit, I don't have cable, so my dad streams it on his iPad and leaves it laying around my house blaring cable news. Stooooop.
Anyway, my long-winded point to this is that we are connected to news ALL the time -- we are intaking soooo much information all the time, and we hear a LOT more awful things on a regular basis than we did 20 years ago. My mom will bring up what I consider such random, out-there tragedy scenarios that she is worried about. So I don't think this is extremely uncommon.