Fire historian: Dragon Bravo Fire is changing as its burns, posing huge problems for crews

The Dragon Bravo Fire at the North Rim of the Grand Canyon, sparked by lightning on July 4, has decreased significantly in containment over the past few days — down to just 4% — as the blaze pushes north with extreme fire behavior.

Stephen Pyne, author of "Pyrocene Park: A journey into the Fire History of Yosemite National Park," joined The Show to talk more about what fire crews are facing.