While the Emergency Alert System is in place to provide warning of an imminent threat and for follow up during an emergency, radio chould play a more significant preparedness role. It's portability, pervasiveness, the the fact that it can be listened to my millions simultaneously without degrading the speed of delivery (unlike the Internet), make it an overlooked resource for preparedness. A system, perhaps modeled on EAS, could be a very useful resource to disseminate information in advance of an emergency.
Idea No. 4