Extreme heat and wildfires a dangerous combination


August 14, 2016, 6:04 PM|In the West, extreme heat combined with thick smoke from wildfires, and air pollution from millions of cars, is making the air in some parts of California dangerous to breathe. While the air quality in Los Angeles County has improved over the years, health officials say it still ranks as the most deadliest in America. Mireya Villareal has more.