Do Public Safety Alerts really work?

FORT WAYNE, Ind. (WANE) - Your phone starts buzzing and you look down to see a Public Safety Alert notification. In Fort Wayne, the ones the police department sends are often asking for help finding a missing person.
"Typically those are sent out with a high risk factor," Sgt. Jeremy Webb, the Fort Wayne Police Department Public Information Officer, said. "The age of the kid could be young or it could be an elderly person with dementia. Or it could be really hot or really cold or the person has