With rise in wildfires, prescribed burns may be a solution

One of the worst wildfire seasons in U.S. history took place in 2018, including catastrophic blazes in California that killed nearly 100 people. As this year's fire season ramps up, a new report shows how the use of prescribed fires are being underutilized in the western United States. Crystal Kolden, professor of fire science at the University of Idaho, joins Hari Sreenivasan to discuss.