If there's a shooting at a school, should educators be prepared to shoot back? Across the country, 15 states already allow concealed carry of some kind in schools, with lawmakers in many more states considering or having recently debated the idea. But all major teacher- and school-employee groups oppose the idea. Special correspondent Kavitha Cardoza of Education Week reports.
PBS NewsHour Classroom helps teachers and students identify the who, what, where and why-it-matters of the major national and international news stories.
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