Amateur Radio helps get messages out of an area stricken by disaster when infrastructure fails. There are a few simple things you can do now to prepare to take advantage of the Amateur Radio Service.
I copied and pasted these excerpts from the NTS MPG so I have them available for quick reference. I've added bold for emphasis and reformatted a little to make it easier to read and understand this advice.
Why qruqsp?
Why are we building this?
What are the goals?
What's the plan?