Duck and cover?

Am I asleep, or shouldn't I have heard about this first from the Huntsville Times (links mine):

Huntsville will outfit an abandoned mine capable of holding 20,000 people. Other residents will be housed in college dorms, churches, libraries and research halls. City planners hope they can develop enough shelter space to house 300,000 people; enough space to provide every person in Huntsville and the surrounding county a safe refuge.

Maybe Lee can find out what it's all about.