A mannequin begins to burn outside of a room that was lit on fire for a burn test demonstration during a media day at the Bureau of Alcohol, Tobacco, and Firearms National Laboratory Center in Beltsville, Maryland, on June 18, 2013. The laboratory celebrated its 10-year anniversary with an open house for media and bureau interns to highlight the types of studies that ATF investigators from across the country perform at the center. (Photo by T.J. Kirkpatrick/Getty Images)
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