Fire-tracking app Watch Duty has become a crucial source of information for Los Angeles residents threatened by the ongoing wildfires.  As TechCrunch’s Maxwell Zeff explained, the app relies on a network of active and retired firefighters, first responders, official government reports, and volunteer reporters who monitor radio scanners to offer real-time updates on active wildfires. […] © 2024 TechCrunch. All rights reserved. For personal use only.