The debate around gun laws is resurfacing in the wake of the deadly high school shooting in Parkland, Florida. Can America’s shared sorrow inspire a consensus that gun violence should be tackled as a public health issue? For years former US Surgeon General Vivek Murthy has labeled gun deaths this way. “Whenever you have large numbers of people who are dying for preventable reasons,” he says, “that constitutes a public health crisis.” Murthy is a supporter of gun laws. In fact, his confirmation in 2014 was delayed a year because of his stance on the issue. In this episode, he speaks with Judy Woodruff, managing editor of the “PBS Newshour,” about what he thinks needs to be done to prevent another mass shooting.