Our computers and cellphones are an increasingly huge part of how we work, socialize and even organize protests. In a natural disaster, those communication tools become even more important but often less reliable. That’s particularly an issue for first responders, who are soon going to have to start dealing with this year’s inevitable hurricanes and wildfires. Marketplace’s Jack Stewart speaks with Craig Fugate, a former FEMA administrator who now consults for goTenna, one of the companies working on “mesh network” technology.