If someone is going to broadcast in a desaster scenario, a shortwave radio might be useful. For the EMP scenario it should be an oldfashioned glow in the dark radio or have a shielded storage. OTOH an EMP might fry the equipment of potential braodcasters as well.
In Germany there is a government agency responsible for desaster managment and providing information about preparing for citizens. They recommend having a shortwave radio - preferably with a dynamo charger - too.
As a HAM operator I own a shortwave radio with dynamo charger and a couple of other items capable of receiving SW.