" but most people don't have access to a working radio"
What? No radios or batteries amongst all the stuff that's been looted?
Come on now, I don't think the looters want to be rescued. It's the other folks that want the help.
I'm sure there are some, but portable radios aren't a widespread item anymore. Most radios are now part of plug-in only stereo systems, since many people primarily listen to CDs and ipods when moving around. And batteries don't last long if they're getting heavy use, which would almost certainly have been the case in the first couple of days. Many were probably used up in flashlights at night.