A special agent with the Pennsylvania attorney general’s office demonstrates how to assemble a ghost gun. Built in about an hour, the weapon was fully functional. (NBC News) Police investigating the ...

For decades, America's detectives have made breakthroughs in crime using gun traces. A homicide investigator typically uses ballistics and serial numbers of weapons checked via a vast network of gun ...

The world’s biggest social media sites are home to thousands of 2nd Amendment devotees who believe anyone should be able to use a 3D printer to build their own gun. Meta, Discord and the DOJ are ...

Anna Schecter is the senior coordinating producer for CBS News and Stations' Crime and Public Safety Unit, based in New York. A growing online gun rights movement known as "3D2A," and the ...