October 12, 2017: Dozens of wildfires are burning in California, and entire neighborhoods have been reduced to piles of ash. Some 8,000 firefighters are battling the blazes on the ground and from the air. A look at what it takes to fight wildfires, plus the latest on the Puerto Rican recovery effort; the fate of the Iran nuclear deal; a felon's drive to graduate from college; women behind bars; and uniting in Mexico after two major earthquakes.