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.
The ghost gun and silencer allegedly used in the United Healthcare CEO shooting appears to have been 3D printed, according to analysts. Experts say the quality of these weapons has improved.
A new North Carolina law requires sheriffs to hold undocumented immigrants in jail for ICE to pick up. It's part of the dance state and federal powers must do to carry out Trump's deportation plans.