As someone who builds telecommunications systems for first responders, I'm not convinced that a chat service, and online technology is <i>better</i> than narrowband 2-way radio, and paper maps.<p>These backcountry places often have no cell service, and paper maps don't have technical difficulties - and are easy/cheap to duplicate and hand out, in addition to being naturally rugged. So this means, expensive non-terrestrial communications, and expensive ruggedized devices.<p>While this is purportedly the problem firstnet is supposed to solve, I'm skeptical that it will solve it, or that the other issues (technical and otherwise) blocking adoption will be overcome.