When they say if sh*t hits the fan, it will be one of the few things that actually work, they are not joking.
Indeed. Many people should consider buying a multiband radio even if they don't yet have an amateur broadcast license - just for learning how to listen.
Besides, in a real SHTF scenario, official call signs will probably be shelved for the duration.
Absolutely, and agree on the call signs!
No doubt about it.