“When I tweeted about the need to address gun violence after the college shooting in the Roseburg, Oregon, a man named Bob pushed back. ‘Check out car accident deaths,’ he tweeted sarcastically. ‘Guess we should ban cars.’ Actually, cars exemplify the public health approach we need to apply to guns. We don’t ban cars, but we do require driver’s licenses, seat belts, air bags, padded dashboards, safety glass and collapsible steering columns. And we’ve reduced the auto fatality rate by 95 percent.”

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