Michael Halpern : We need scientific research on gun violence to inform policy . Others : The NRA wants Congress to end gun violence research at CDC . Researchers free from conflicts of interest should work with policy makers , he writes . At a more basic level , national and state legislative committees should hold more hearings designed to study evidence rather than using hearings as theater to advance a political point of view . Also , we must open our research to findings that disagree with our beliefs , he writes .
Michael Halpern : We need scientific research on gun violence to inform policy . Others : The NRA wants Congress to end gun violence research at CDC . Researchers free from conflicts of interest should work with policy makers , he writes . Also , we must open our research to findings that disagree with our beliefs , he writes .