'Driving While Brown'; Melting Thwaites Glacier

Joe Arpaio's hard-line immigration enforcement in Arizona's Maricopa County sparked a fierce Latino-led resistance movement determined to bring him down. Jude Joffe-Block discusses her new book on Arpaio's downfall, "Driving While Brown." And, one of the largest glaciers in Antarctica is melting faster than previously known. Researcher Rob Larter discusses the fate of the Thwaites Glacier.