Headline: On 20th Columbine Anniversary: Allow Parents To Choose Safer SchoolsLink: https://www.heartland.org/news-opinion/news/on-20th-columbine-anniversary-allow-…Publication Date: Monday, April 1, 2019Primary Source: Heartland InstituteNon-Cato Author: Joe BarnettType: new media postFormat: New MediaNature of Mention: citedScholar: DeAngelis, CoreyResearch Area: Education and Child PolicySubjects: school choice