Amber alert - Fail

On Saturday when I was heading out to Eddy's Bike Shop to pick up the bar wrap I heard the emergency broadcast tones on WCPN, the local NPR station.The tone came and went and the normal program came back on.There was no indication what the emergency was.On the way back, perhaps three-quarter hour late, the same routine happened again. Tone with no additional information.Further up the road I saw one of the electronic billboards with "Amber Alert" but I didn't have time to read it.I learned today that the subject of the Amber Alert was killed along with her daughter. The perpetrator went on to kill himself too.The question I have in my head: what would have happened if the system worked as designed? What if the radio broadcast had any information?<sigh/>