December 7, 2017 7:00 pm San Diego Firefighters Using Secret Weapon to Battle Blazes NBC 7’s Danielle Radin shows you the incredible technology local firefighters are using to battle wildfires. US & World Videos 2:45 La Jolla Concours d'Elegance classic race cars 1:39 Troops Endure Hyper-Realistic Training 2:07 New study links consuming red meat with dementia 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl