Singer-songwriter Harry Chapin died in a car crash in 1981 at just 38, but his legacy lives on through hits like "Cat's in the Cradle" and hunger-related charities, including WhyHunger, which he helped launch. David Pogue speaks with Chapin’s family about his impact as a father, philanthropist, and believer in the motto: “When in doubt, do something.” https://cbsn.ws/4079MFj | CBS Sunday Morning