Segment 1: National School Walkout Day. This morning, students around the country walked out of their classrooms to protest gun violence and to demand action on mass shootings. We hear about what happened in KC and examine whether schools have a role in fostering student activism. Meira Levinson, Professor of Education, Harvard University Elle Moxley , KCUR's education reporter Segment 2, beginning at 25:23: Determining the monetary value of someone's life. How much is a year of your life worth