Arizona wildfires

Communication breakdowns can be fatal for firefighters, but are all too easy when crews are shrouded in smoke and a blaze is moving fast. Florida, with its millions of acres of forest and grassland, has rolled out a new system that can pinpoint crews without relying on voice communication.

The 19 "hotshots" who were killed while fighting a wildfire over the weekend were remembered on Monday in Prescott, Ariz. The simple tolling of a bell and the reading of their names brought home the sad story. Meanwhile, the fire they were fighting continues to burn.

As many as 400 firefighters, still mourning those lost, are now battling the massive Arizona wildfire. Since it began Friday, the Yarnell Hill Fire has grown to more than 8,000 acres, destroying an estimated 200 homes.