New York University economics professor Jonathan Morduch discusses how American families manage their finances. His work is based detailed data from a year-long project that tracked the spending habits of 235 American families. New York University neural professor Wendy Suzuki discusses a new film about University of California, Berkeley professor Dr. Marian Diamond. Diamond is one of the founders of modern neuroscience. New Yorker staff writer David Grann discusses his investigation into a string of murders of Native Americans that took place in Oklahoma during the 1920s. ProPublica's Julia Angwin discusses how some major insurers charge minority neighborhoods as much as 30 percent more than other areas with similar accident costs.