BOULDER, Colorado, Dec. 9 (TNSres) -- The Natural Hazards Center issued the following news: * * * Natural Hazards Center Research Supports State Legislature in Improving Emergency Notifications * * * From outdoor sirens to text alerts, emergency messaging systems abound. They're so prevalent that the public might take for granted that if they're in danger, authorities will notify them. While that's certainly the goal of many emergency management agencies, it's not an easy task--and communica  more