Busy wildfire season tests US fire bosses as they juggle resources to stay ahead

The U.S. faces a deadly wildfire season with persistent drought, low snowpack, and hot, dry weather fueling hundreds of fires. Authorities are pre-positioning resources to quickly attack blazes, but three firefighters died in Colorado and a pilot was killed in a helicopter crash. Over 2,100 fires have been reported since early July, prompting increased national preparedness levels and inter-regional firefighter mobilization.