This photo taken Jan. 23, 2013 shows tracer Wendy Myer working to trace the ownership of a firearm used in a crime in a cubicle crowded with boxes of firearms transactions from dealers

 

              This photo taken Jan. 23, 2013 shows tracer Wendy Myer working to trace the ownership of a firearm used in a crime in a cubicle crowded with boxes of firearms transactions from dealers
This photo taken Jan. 23, 2013 shows tracer Wendy Myer working to trace the ownership of a firearm used in a crime in a cubicle crowded with boxes of firearms transactions from dealers no longer in business, at the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) National Trace Center in Martinsburg, W.Va. (AP Photo/Cliff Owen)