Nuclear Air Raid Sirens

I live very close to the Y12 National Security Plant here in Oak Ridge, Tennessee. This is were the first atomic bomb was built. They are still built here to this day. Every Wednesday at noon, the air raid sirens are blasted for testing. This has been going on since the beginning of the Cold War.

https://www.y12.doe.gov/
https://tngenweb.org/andersoncounty/2012/06/history-of-oak-ridge/