A WWII air raid siren startled me once while I waited for a train. Such an old technology could certainly be replaced with something better. At least that’s what I thought until a real emergency cropped up.
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www.expatchatter.net Brenda Arnold
https://expatchatter.net/2022/05/14/think-digital-technology-is-a-cure-all-dont-bet-your-life-on-it/