SALEM — The Salem Police Department is investigating a Wednesday incident in which the Essex Street Pedestrian Mall’s emergency broadcast system was inadvertently activated. Late that evening, Salem ...

Growing up, the Emergency Broadcast System was a kind of sonic boogeyman. Its signature harsh tone would cut through your favorite TV show or song on the radio, announcing that “THIS IS ONLY A TEST”.

Experts in alerting are keeping an eye on a project in Florida, where emergency management officials are harnessing the power of artificial intelligence in an effort to better protect residents from ...