“BALLISTIC MISSILE THREAT INBOUND TO HAWAII. SEEK IMMEDIATE SHELTER. THIS IS NOT A DRILL.”

Coming near you?

EAS / IPAWS are accessible and usable by a vast amount of governmental services already.

WEA is accessible to state (and local?) police for example to send amber alerts.

There’s a few providers who supply software to help make this easier as well.

https://comtech.com/capability/wireless-emergency-alerts/

Really the risk of that type of alert you’re referencing could be sent in a localized area by most agencies if a mistake were made. (Though I wonder how many have a missile threat inbound alert pre programmed…)

This article is really just about technology that expands WEA to use satellites to deliver to handsets.

https://en.wikipedia.org/wiki/Emergency_Alert_System

https://www.fcc.gov/consumers/guides/wireless-emergency-aler...