LETTER: City warning system clarified
To the Editor:
For those people raised during the 1950s, 60s and into the 70s, a community siren may have had several interpretations, some of which were confusing and varied with each community.
The standard Civil Defense notification of an impending enemy air attack was a three- to five-minute wailing tone. If no such attack materialized, a single up-and-down tone signaled "all clear."