In March, the Supreme Court upheld Biden-era restrictions on build-it-yourself gun kits. But gun rights groups are still hoping the regulation will be swept away.
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Martin Kaste
Martin Kaste is a correspondent on NPR's National Desk. He covers law enforcement and privacy. He has been focused on police and use of force since before the 2014 protests in Ferguson, and that coverage led to the creation of NPR's Criminal Justice Collaborative.