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.
NPR's Pien Huang takes a journey to the Smithsonian Folklife Festival to hear from youth voices about how they're telling the story of America on the 4th of July.